Answer:
The normal amount of disaccharide would be produced, but fewer monosaccharides would be produced.
Explanation:
The first reaction, the conversion of starch into disaccharides, is catalyzed by the enzyme amylase. Since amylase is present in a normal amount, a normal amount of disaccharides will be produced.
In the second reaction, these disaccharides will be transformed into monosaccharides by a disaccharidase. However, since there is less disaccharidase, there will be fewer monosaccharides produced than if it was a normal amount of amylase.
Final answer:
If there is a normal amount of amylase but less disaccharidase than usual, the normal amount of disaccharide would be produced, but fewer monosaccharides would result from the reaction.
Explanation:
When examining the reaction starch → amylase → disaccharides → disaccharidase → monosaccharides, the presence of a normal amount of amylase means that starch can be broken down into disaccharides effectively. However, with less disaccharidase than usual, fewer monosaccharides would be produced from the disaccharides. The normal amount of disaccharide produced by amylase would not change, but since disaccharidase is responsible for the breakdown of disaccharides into monosaccharides, a deficiency in this enzyme means the reaction would be incomplete, leading to less monosaccharides being produced.
How do the properties of the elements change as you move across a period on a periodic table from left to right?
Group of answer choices
A)The elements become more metallic.
B)The elements become less reactive.
C)The elements have smaller atomic masses.
D)The elements become more nonmetallic.
ASAP WILL GIVE BRAINLIEST!!
A) Which is the limiting reactant? Why? Justify your answer showing
necessary calculations
B) What is the theoretical yield of NH3 in grams?
Answer:
The answer to your question is a) N₂ b) 3.04 g of NH₃
Explanation:
Data
mass of H₂ = 2.5 g
mass of N₂ = 2.5 g
molar mass H₂ = 2.02 g
molar mass of N₂ = 28.02 g
molar mass of NH₃ = 17.04 g
Balanced chemical reaction
3H₂ + 1 N₂ ⇒ 2NH₃
A)
Calculate the theoretical yield 3H₂ / N₂ = 3(2.02) / 28.02 = 0.22
Calculate the experimental yield H₂/N₂ = 2.5/2.5 = 1
Conclusion
The limiting reactant is N₂ (nitrogen) because the experimental proportion was higher than the theoretical proportion.
B)
28.02 g of N₂ -------------------- (2 x 17.04) g of NH₃
2.5 g of N₂ -------------------- x
x = (2.5 x 2 x 17.04) / 28.02
x = 85.2 / 28.02
x = 3.04 g of NH₃
Which is the correct order of increasing standard molar entropy for the noble gases?
He ≤ Ne ≤ Kr ≤ Ar
He ≤ Ne ≤ Ar ≤ Kr
Ne ≤ He ≤ Ar ≤ Kr
Kr ≤ Ar ≤ Ne ≤ He
Answer:
The correct order of increasing standard molar entropy for the noble gases is He ≤ Ne ≤ Ar ≤ Kr
Explanation:
Entropy is the measure of degree of disorderliness or randomness of a substance. Entropy increases with increasing number of electron present in an atom due to increased repulsive force of the electrons. Therefore, the standard entropy of a substance increases with an increase in their atomic masses.
For the given noble gases in this question, Helium (He) has the least atomic mass while Krypton (Kr) has the highest atomic mass.
Thus, the correct order of increasing standard molar entropy for the noble gases is He ≤ Ne ≤ Ar ≤ Kr
Final answer:
The increasing standard molar entropy for noble gases is He ≤ Ne ≤ Ar ≤ Kr, due to growing atomic number and electronic complexity down the group.
Explanation:
The correct order of increasing standard molar entropy for the noble gases is He ≤ Ne ≤ Ar ≤ Kr. This is because entropy generally increases with atomic number due to increased electronic complexity and atomic mass. As you move down the group in the periodic table, noble gases have more electrons that can occupy a greater volume of space and therefore have higher entropy.
A child received a balloon filled with 2.30 L of helium from a vendor at an
amusement park where the pressure in the balloon is 923 torr. What will the final
pressure of the balloon be, in torr, when the child uses some of the helium and
causes the final volume to fall to 1.55 L? Assume that the temperature is held
constant.
Answer : The final pressure of the balloon will be, 1369.6 torr
Explanation :
Boyle's Law : It is defined as the pressure of the gas is inversely proportional to the volume of the gas at constant temperature and number of moles.
[tex]P\propto \frac{1}{V}[/tex]
or,
[tex]P_1V_1=P_2V_2[/tex]
where,
[tex]P_1[/tex] = initial pressure = 923 torr
[tex]P_2[/tex] = final pressure = ?
[tex]V_1[/tex] = initial volume = 2.30 L
[tex]V_2[/tex] = final volume = 1.55 L
Now put all the given values in the above equation, we get:
[tex]923torr\times 2.30L=P_2\times 1.55L[/tex]
[tex]P_2=1369.6torr[/tex]
Thus, the final pressure of the balloon will be, 1369.6 torr
Which statements are true? Check all that apply.
Alpha decay emits the same number of protons and neutrons
Beta decay always emits protons.
Beta decay always emits electrons.
Gamma rays are particles of fast-moving matter
Gamma rays are a form of electromagnetic radiation.
DONE
Answer:
A and E
Alpha decay emits the same number of protons and neutrons
Gamma rays are a form of electromagnetic radiation
Explanation:
Just did this one e2020 :)
Answer:
a and e
Explanation:
edge
Given the reactant side of the total ionic equation for the neutralization reaction of ammonium hydroxide (NH4OH) with hydrochloric acid (HCl), write the total ionic equation (also known as the complete ionic equation) by entering both the reactant and the product species, separated by the reaction arrow.
Final answer:
The total ionic equation for the neutralization reaction of ammonium hydroxide with hydrochloric acid expresses all components as ions and after removing spectator ions, the net ionic equation is OH⁻(aq) + H⁺(aq) → H₂O(l).
Explanation:
To write the total ionic equation for the neutralization reaction of ammonium hydroxide (NH₄OH) with hydrochloric acid (HCl), we need to express all soluble substances as ions. Ammonium hydroxide can be represented as NH₄⁺(aq) and OH⁻(aq) since it partially dissociates in solution. The hydrochloric acid fully dissociates into H⁺(aq) and Cl⁻(aq).
The total ionic equation is as follows:
NH₄⁺(aq) + OH⁻(aq) + H⁺(aq) + Cl⁻(aq) → NH₄⁺(aq) + Cl⁻(aq) + 2H₂O(l)
The net ionic equation, which shows the actual chemical change, is produced by removing the spectator ions (NH₄⁺ and Cl-), resulting in: OH⁻(aq) + H⁺(aq) → H₂O(l)
Final answer:
The total ionic equation for the neutralization reaction between ammonium hydroxide and hydrochloric acid is NH4+(aq) + OH-(aq) + H+(aq) + Cl-(aq) → NH4+(aq) + Cl-(aq) + H2O(l), with H+(aq) + OH-(aq) → H2O(l) as the net ionic equation.
Explanation:
The total ionic equation for the neutralization reaction of ammonium hydroxide (NH4OH) with hydrochloric acid (HCl) shows each species in its ionic form. The reactants ammonium hydroxide and hydrochloric acid dissociate in water to form NH4+ (aq), OH- (aq), H+ (aq), and Cl- (aq). In a complete ionic equation, all of the ions are shown as they exist in solution before and after the reaction:
NH4+ (aq) + OH- (aq) + H+ (aq) + Cl- (aq) → NH4+ (aq) + Cl- (aq) + H2O(l)
After the reaction, ammonium ions and chloride ions remain in solution while water is formed as the product. However, since ammonium ions (NH4+) are spectator ions in this reaction, they can be omitted to provide the net ionic equation:
H+ (aq) + OH- (aq) → H2O(l)
The net ionic equation indicates that the hydrogen ions (H+ from the hydrochloric acid) combine with the hydroxide ions (OH- from the ammonium hydroxide) to form water, which is a characteristic outcome of a neutralization reaction.
Which of the following happens during a chemical change? Check all of the boxes that apply
0 One atom or more changes into atoms of another element.
New substances with different properties are formed.
O Solids, liquids, or gases may form.
0 Reaction mixtures always give off some heat.
0 Reaction mixtures always need to be heated.
Answer:
One atom or more changes into atoms of another element.New subtances with different properties are formed.
Answer:
B. New substances with different properties are formed
C. Solids, Liquids, or gases may form
Explanation:
Edg 2020
A catalytic converter in an automobile uses a palladium or platinum catalyst to convert carbon monoxide gas to carbon dioxide according to the following reaction: 2CO(g) + O2 (g) --> 2CO2(g) A chemist researching the effectiveness of a new catalyst combines a 2.0 : 1.0 mole ratio mixture of carbon monoxide and oxygen gas (respectively) over the catalyst in a 2.45L flask at a total pressure of 740 torr and a temperature of 552 C . When the reaction is complete, the pressure in the flask has dropped to 552 torr. What percentage of the carbon monoxide was converted to carbon dioxide?
Answer:
the fraction of CO reacted is 0.76 or 76.0 %
Explanation:
Step 1: Data given
a new catalyst combines a 2.0 : 1.0 mole ratio mixture of carbon monoxide and oxygen gas
Volume = 2.45 L
Total pressure = 740 torr
Temperature = 552 °C = 825 K
Pressure decreases to 552 torr
Step 2: The balanced equation
2CO(g) + O2 (g) --> 2CO2(g)
Step 3: Calculate the percentage of the CO was converted to CO2
P1/n1 = P2/n2
⇒P1 = the initial pressure = 740 torr
⇒n1 = the initial number of moles = 2.0 moles CO and 1 mol of O2 = 3.0 moles
⇒P2 = the final pressure = 552 torr
⇒n2 = the final number of moles = TO BE DETERMINED
n2 = n1 * P2/P1
n2 =3.0 * 552 torr / 740 torr
n2 = 2.24 moles
Step 4: Calculate total moles of CO
Suppose X = the fraction of CO
final = 2*(x) + 3*(1-x)
2.24 = 2x + 3 - 3x
2.24 = -X + 3
-0.76 = -X
X = 0.76
This means the fraction of CO reacted is 0.76 or 76.0 %
The fraction or the percentage of the carbon monoxide converted to carbon dioxide is 76%.
Given:
Ratio of new catalyst to the mole ratio of carbon dioxide and oxygen = 2:1
Volume = 2.45 L
Temperature = 825 K
Pressure = 740 torr
The reaction is:
2CO(g) + O₂ (g) [tex]\rightarrow[/tex] 2CO₂
From the reaction, the amount of CO converted into carbon dioxide is:
[tex]\dfrac{\text{P}_1}{\text n _1}&=\dfrac{\text{P}_2}{\text n _2}[/tex]
Where,
P₁ = initial pressure
n₁ = number of moles (initial)
P₂ = final pressure
n₂ = final number of moles
Now, calculating the n₂:
[tex]\text n_2 &= \dfrac{\text n_1 \times \text P_2}{\text P_1}[/tex]
[tex]\text n_2 &= \dfrac{3 \times 552}{740}[/tex]
n₂ = 2.24 moles.
Now, the total moles of carbon monoxide is:
2.24 = 2 x Y + 3 x (1 - Y)
2.24 = 2Y + 3 - 3Y
Y = 0.76
Thus, the number of a fraction of CO is 0.76.
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What is the dropping of a sediment called
Answer:Deposition is the dropping of sediment by wind, water, ice, or gravity.
Explanation:
When thermal energy is added to a substance, its temperature increases, which can change its state from solid to liquid
Answer:
The dropping of a sediment is called deposition.what is the formula for tetrabromine decafluoride
Answer:
[tex]Br_{4}F_{10}[/tex]
The prefix "Tetra" implies 4 Bromine atoms. The prefix "Deca" implies 10 fluorine atoms.
Define dissolve in your own words
Answer:
Dissolve: to terminate a union of multiple members actively, as by disbanding
Question 2 (1 point)
Which of these pictures is an example of matter? Explain your answer.
Answer:
The kid on the bike.
Explanation:
He has a physical form, whereas the shadow doesn't.
Answer:
the kid on the bicycle
Explanation:
matter is anything that takes up space and a shadow does not physically take up any space
If a sample gas is collected over water. The atmospheric pressure is 778 mm and the temperature is 30°C. If the vapor pressure of water at 30 C is 31.8 mm, what is the pressure of the gas?
Answer:
P = 746.2 mmHg or 0.9818 atm
Explanation:
First, we have a sample gas (This can be hydrogen, argon, nitrogen or any other gas) that was collected with a pressure of 778 mmHg. We also know the vapor pressure which is 31.8 mmHg. To get the pressure that the gas is exerting, we can assume that the atmospherical pressure is the total pressure of the whole system. Therefore we can use the following expression:
Pt = Pw + Pg (1)
Where:
Pt: total pressure
Pw: water pressure
Pg: gas pressure
From (1) we can solve for the gas pressure and have:
Pg = Pt - Pw
Replacing the data we have:
Pg = 778 - 31.8
Pg = 746.2 mmHgThis would be the pressure of the gasIf you want this value in atm, you should divide it by 760 mmHg (Conversion from mmHg to atm):
Pg = 746.2 / 760
Pg = 0.9818 atm
Which is the most likely to be reduced?
A. Fe2+
B 7.2+
C. Ni2+
D. Mg2+
Answer:
A. Fe2+
Explanation:
other answer was wrong
[tex]Fe^{2+}[/tex] is the most likely to be reduced. Hence, option A is correct.
What is oxidation?Oxidation: The loss of electrons
Reduction: The gain of electrons
Oxidation number: the charge based on the number of electrons assigned to an atom as compared to the neutral atom.
[tex]Fe^{2+}[/tex] oxidize to [tex]Fe^{3+}[/tex] because removing the electron results in a half-filled d subshell.
Hence, option A is correct.
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Which element has the strongest attraction for electrons?
boron
hydrogen
fluorine
80%
nitrogen
Answer:
The answer is Flourine
Consider the following errors that could be made when running TLC. Indicate what should be done to correct the error. a. A two-component mixture containing 1-octene and 1, 4-dimethylbenzene gave only one spot with an Rf value of 0.95. The solvent used was acetone.
Final answer:
To correct a high Rf value of 0.95 in TLC, decrease the polarity of the mobile phase by using a less polar solvent and ensure the sample is not too concentrated for improved separation and accurate Rf values.
Explanation:
When running Thin Layer Chromatography (TLC), a high Rf value of 0.95 implies that the sample has moved almost as far as the solvent front, suggesting that the mobile phase is too polar. To correct this and achieve better separation, the polarity of the mobile phase should be decreased.
Using a less polar solvent, such as a mixture of hexanes and ethyl acetate, instead of pure acetone might provide better separation of the components 1-octene and 1, 4-dimethylbenzene.
Additionally, ensuring that the samples are not too concentrated can lead to more accurate Rf values and better spot definition. A correctly run TLC should show the desired component with an Rf around 0.35, separated from other spots by at least 0.2 Rf units.
Looking at the heating curves for water (H2O) and ethyl alcohol (C2H5OH), formulate an explanation for the difference in heats of vaporization (2260 J/g for water and 854 J/g for ethyl alcohol).
Answer:
A)They both exhibit hydrogen bonding. However, water has more hydrogens available for hydrogen bonding. Therefore, it requires more heat energy to convert it from a liquid to a gas
Explanation:
USA Test Prep Answer
Where does filtration of the blood occur within the kidneys?
Answer:
takes place in the glomerulus
Explanation:
which is the vascular beginning of the nephron . Approximately one-fourth of the blood flow from cardiac output circulates through the kidney, the greatest rate of blood flow for any organ .
The filtration of the blood in the kidneys occurs in the glomerulus, where most solutes are filtered out by glomerular filtration.
Filtration of the Blood in the Kidneys:
The filtration of the blood in the kidneys primarily occurs in the glomerulus. The glomerulus is a network of capillaries at the beginning of a nephron. When blood flows through the glomerulus, most solutes, except for proteins, are filtered out into the glomerulus by a process called glomerular filtration. The filtrate is then collected in the renal tubules, where it undergoes further processing to form urine.
This process begins with glomerular filtration, continues with tubular reabsorption in the proximal convoluted tubule (PCT), and ends with tubular secretion. Finally, the collecting ducts gather the filtrate, now called urine, which is passed on to the ureters and then eliminated from the body.
Which is the best example of an organism's niche shown in
the picture?
O
The environment contains several of the same species
of coral
The shallow area of the ocean meets the needs of the
coral and the fish
The ocean has fish and coral that live in the same area.
The coral take in food from the water and provide
shem for the fish
Answer:
THE ANSWER IS (D)
Explanation:
Your WelcomeAnswer:
it's D
Explanation:
Extend your thinking: Why do you think the temperature does not change much during a phase change? If possible, discuss your answer with your classmates and teacher.
Answer:
The rate of temperature change does not stay constant and decreases over time because the temperature difference decreases over time.
Explanation:
The temperature difference is due to Thermal Equilibrium
Magnesium nitride is formed in the reaction of magnesium metal and nitrogen gas. 4.0 mol of nitrogen is reacted with 6.0 mol of magnesium. The result is…..
a. 2.0 mol of magnesium nitride and 2.0 mol excess nitrogen
b. 4.0 mol of magnesium nitride and 2.0 mol excess magnesium
c. 6.0 mol of magnesium nitride and 3.0 mol excess nitrogen
d. No product because the reactants are not in the correct mole ratio
Answer:
The correct answer is A
We'll have 2.0 moles of magnesium nitride produced and and excess of 2.0 moles nitrogen gas
Explanation:
Step 1: Data given
Number of moles nitrogen gas (N2) = 4.0 moles
Number of moles magnesium = 6.0 moles
Step 2: The balanced equation
3Mg + N2 → Mg3N2
Step 3: Calculate the limiting reactant
For 3 molesmagnesium (Mg) we need 1 mol nitrogen gas (N2) to react, to produce 1 mol magnesium nitride (Mg3N2)
Magnesium is the limiting reactant. It will completely be consumed 6.0 moles. Nitrogen is in excess. There will react 6.0 / 3 = 2.0 moles
There will remain 4.0 - 2.0 = 2.0 moles N2
Step4: Calculate moles Mg3N2
For 3 molesmagnesium (Mg) we need 1 mol nitrogen gas (N2) to react, to produce 1 mol magnesium nitride (Mg3N2)
For 6.0 moles Mg we'll have 6.0 / 3 = 2.0 moles Mg3N2
The correct answer is A
We'll have 2.0 moles of magnesium nitride produced and and excess of 2.0 moles nitrogen gas
The correct answer is a. 2.0 moles of magnesium nitride are formed when 6.0 moles of magnesium react with 4.0 moles of nitrogen, leaving 2.0 moles of nitrogen unreacted as excess.
Explanation:The formation of magnesium nitride involves a reaction between magnesium metal and nitrogen gas. Magnesium forms a Mg2+ ion, which is a cation, by losing two electrons. Nitrogen, a non-metal, forms an anion with a charge of 3-. Therefore, the formula for magnesium nitride is Mg3N2, indicating that three magnesium ions react with two nitrogen ions to form one formula unit of magnesium nitride.
The balanced chemical equation for the formation of magnesium nitride is:
3Mg + N2 → Mg3N2
Given that 4.0 moles of nitrogen is reacted with 6.0 moles of magnesium, we can determine the limiting reactant and calculate the product formed. The molar ratio of Mg to N2 in the equation is 3:1, meaning three moles of Mg are required for every mole of N2. Therefore, 6.0 moles of Mg would completely react with 2.0 moles of N2 to produce magnesium nitride. Since we started with 4.0 moles of nitrogen, we have an excess of nitrogen, and magnesium is the limiting reactant.
The result is that all of the magnesium reacts and you would produce 2.0 moles of magnesium nitride with 2.0 moles of nitrogen left over as excess. Hence, the correct answer to the student's question is option a.
What are the missing coefficients for the skeleton equation below?
Al2(SO4)3(aq) + KOH(aq) --> Al(OH)3(aq) + K2SO4(aq)
A. single replacement
B. combustion
C. double replacement
D. combination/synthesis
E. decomposition
Answer:
C. Double Replacement
Explanation:
A. Wrong because SR uses a compound and element. This equation is a compound and compound.
B. Wrong because it does not have O2 in the formula. All combustion reactions must have O2.
C. Correct because it is a compound reacting with a compound.
D. Wrong because the reactants did not form a single product. ex. (x + y > xy)
E. Wrong because the equation did not start with a single compound and break down. ex. (xy > x + y)
The missing coefficients for the given chemical equation are found by balancing Al, SO₄, K, and OH groups, resulting in a balanced equation representing a double replacement reaction: Al₂(SO₄)₃(aq) + 6 KOH(aq)
ightarrow 2 Al(OH)₃(aq) + 3 K₂SO₄(aq).
The reaction in question is a classic example of a double replacement reaction, where the cations and anions of two ionic compounds switch places, forming two new compounds. To balance the skeleton equation, we should find the correct stoichiometric coefficients that maintain the conservation of mass for each element.
Start by writing the unbalanced equation with all reactants and products including their states:
Al₂(SO₄)₃(aq) + KOH(aq)
ightarrow Al(OH)₃(aq) + K₂SO₄(aq)
Now balance the elements step by step:
Balance the aluminum (Al) by ensuring there are 2 Al atoms on both sides: 2 Al(OH)₃.Balance the sulfate ions (SO₄) by making sure 3 sulfate ions are on both sides: 1 Al₂(SO₄)₃ to 3 K₂SO₄.Balance the potassium (K) by having 6 KOH on the reactant side to match the 3 K₂SO₄ on the product side.Finally, balance the hydroxide ions (OH⁻) by ensuring there are 6 OH- on both sides.This yields the balanced chemical equation:
Al₂(SO₄)₃(aq) + 6 KOH(aq)
ightarrow 2 Al(OH)₃(aq) + 3 K₂SO₄(aq)
The type of reaction for the balance is option C, which is double replacement.
Select the more electronegative element in each pair.a.Cl or Fb.Se or Oc.N or Asd.Na or Mg
Answer:
The answer to your question is below
Explanation:
Electronegativity is a measure of how strongly atoms attract electrons to themselves.
Process
Look for the electronegativity of each element and compare.
a) Cl = 3.16 F = 3.98 Fluorine has a higher electronegativity
b) Se = 2.55 O = 3.44 Oxygen has a higher electronegativity
c) N = 3.04 As = 2.18 Nitrogen has a higher electronegativity
d) Na = 0.93 Mg = 1.31 Magnesium has a higher electronegativity
The more electronegative elements among the pairs are F (fluorine), O (oxygen), N (nitrogen), and Na (sodium). These are determined based on their positions in the periodic table, where electronegativity generally increases from left to right and decreases from top to bottom.
Explanation:Electronegativity is a measure of the ability of an atom to attract a bonding pair of electrons. The Pauling scale is the most commonly used electronegativity scale and it ranges from 0 to 4.
In the pair Cl (chlorine) and F (fluorine), F is more electronegative.In the pair Se (selenium) and O (oxygen), O is more electronegative.In the pair N (nitrogen) and As (arsenic), N is more electronegative.In the pair Na (sodium) and Mg (magnesium), Na is more electronegative.Generally, electronegativity increases from left to right across a period and decreases moving down a group or column in the periodic table. Therefore, elements on the top right corner of the periodic table (excluding noble gases) are the most electronegative.
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An acid and base will combine to form a new substance with new properties in a _____?
a. physical change
b. chemical reaction
c. distillation
d. concentration
Answer:
chemical reaction... that's because when they combine.. they form a salt and water only
Indicate whether aqueous solutions of the following will contain only ions, only molecules, or mostly molecules and a few ions. You may use answers more than once. Question 5 options: ethanol, C2H5OH, a nonelectrolyte Na2SO4, a strong electrolyte HCN, hydrocyanic acid, a weak electrolyte
Answer:
C2H5OH--- aqueous solution contains mostly molecules
Na2SO4---aqueous solution contains ions
HCN ---aqueous solution contains mostly molecules and a few ions
Explanation:
Only strong electrolytes dissociate completely in solution to form ions. Hence aqueous solutions of strong electrolytes comprises of ions which conduct electricity.
Weak electrolyte aqueous solutions contain mostly molecules since they ionize only to a very small extent in solution.
Nonelectrolytes remain molecular in solution and do not conduct electricity at all.
When dissolved in water, nonelectrolytes like ethanol produce primarily molecules, strong electrolytes like Na2SO4 generate only ions, and weak electrolytes like HCN result in a mix of mostly molecules with a few ions.
Explanation:The type of substances present in a solution can be predicted based on the type of electrolyte. C2H5OH (ethanol), a nonelectrolyte, will mainly form molecules when dissolved in water as it does not ionize. Na2SO4, a strong electrolyte, will fully dissociate in water and produce only ions. HCN (hydrocyanic acid), a weak electrolyte, will produce mostly molecules with a few ions as it only partially ionizes in an aqueous solution.
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50 kg of N2 gas and 10kg of H2 gas are mixed to produce NH3 gas calculate the NH3gas formed. Identify the limiting reagent in the production of NH3 in this situation
Answer:
1. H2 is the limiting reactant.
2. 56666.67g ( i.e 56.67kg) of NH3 is produced.
Explanation:
Step 1:
The equation for the reaction. This is given below:
N2 + H2 —> NH3
Step 2:
Balancing the equation.
N2 + H2 —> NH3
The above equation can be balanced as follow :
There are 2 atoms of N on the left side and 1 atom on the right side. It can be balance by putting 2 in front of NH3 as shown below:
N2 + H2 —> 2NH3
There are 6 atoms of H on the right side and 2 atoms on the left side. It can be balance by putting 3 in front of H2 as shown below
N2 + 3H2 —> 2NH3
Now the equation is balanced.
Step 3:
Determination of the masses of N2 and H2 that reacted and the mass of NH3 produced from the balanced equation. This is illustrated below:
N2 + 3H2 —> 2NH3
Molar Mass of N2 = 2x14 = 28g/mol
Molar Mass of H2 = 2x1 = 2g/mol
Mass of H2 from the balanced equation = 3 x 2 = 6g
Molar Mass of NH3 = 14 + (3x1) = 14 + 3 = 17g/mol
Mass of NH3 from the balanced equation = 2 x 17 = 34g
From the balanced equation above,
28g of N2 reacted with 6g of H2 to produce 34g of NH3
Step 4:
Determination of the limiting reactant. This is illustrated below:
N2 + 3H2 —> 2NH3
Let us consider using all the 10kg (i.e 10000g) of H2 to see if there will be any left of for N2.
From the balanced equation above,
28g of N2 reacted with 6g of H2.
Therefore, Xg of N2 will react with 10000g of H2 i.e
Xg of N2 = (28 x 10000)/6
Xg of N2 = 46666.67g
We can see from the calculations above that there are leftover for N2 as only 46666.67g reacted out of 50kg ( i.e 50000g) that was given. Therefore, H2 is the limiting reactant.
Step 5:
Determination of the mass of NH3 produced during the reaction. This is illustrated below:
N2 + 3H2 —> 2NH3
From the balanced equation above,
6g of H2 reacted to produce 34g of NH3.
Therefore, 10000g of H2 will react to produce = ( 10000 x 34)/6 = 6g of 56666.67g of NH3.
Therefore, 56666.67g ( i.e 56.67kg) of NH3 is produced.
Answer:
H2 is the limiting reactant
56.2 kg of NH3 will be formed
Explanation:
Step 1: Data given
Mass of N2 = 50 kg = 50000 grams
Mass of H2 = 10 kg = 10000 grams
Molar mass of N2 = 28.0 g/mol
Molar mass of H2 = 2.02 g/mol
Molar mass NH3 = 17.03 g/mol
Step 2: The balanced equation
N2(g) + 3H2(g) → 2NH3(g)
Step 3: Calculate moles
Moles = mass / molar mass
Moles N2 = 50000 grams / 28.0 g/mol
Moles N2 = 1785.7 moles
Moles H2 = 10000 grams / 2.02 g/mol
Moles H2 = 4950.5 moles
Step 4: Calculate the limiting reactant
For 1 mol N2 we need 3 moles H2 to produce 2 moles NH3
H2 is the limiting reactant.It will completely be consumed (4950.5 moles). Né is in excess. There will react 4950.5 / 3 = 1650.2 moles. There will remain 1785.7 - 1650.2 = 135.5 moles
Step 5: Calculate moles NH3
For 1 mol N2 we need 3 moles H2 to produce 2 moles NH3
For 4950.5 moles H2 we'll have 2/3 * 4950.5 = 3300.3 moles
Step 6: Calculate mass NH3
Mass NH3 = moles NH3 * molar mass NH3
Mass NH3 = 3300.3 moles * 17.03 g/mol
Mass NH3 = 56204 grams = 56.2 kg
A balloon has been fillled to a volume of 1.90L with 0.09Omal of helium gas. If 0.0210mol of additional helium is added to the balloon with the temperature and pressure are held constant, what is the new volume of the balloom
The new volume of the balloon is approximately 2.33 liters when additional helium is added.
To find the new volume of the balloon, we can use Avogadro's Law, which states that the volume of a gas is directly proportional to the number of moles of gas, provided the temperature and pressure are constant. The formula for Avogadro's Law is:
[tex]\frac{V_1}{n_1} = \frac{V_2}{n_2}[/tex]
where:
V1 is the initial volume (1.90 L)n1 is the initial number of moles (0.0920 mol)V2 is the final volumen2 is the final number of moles (0.0920 mol + 0.0210 mol = 0.1130 mol)We can rearrange the formula to solve for V2:
V2 = (V1 * n2) / n1
Substituting the values, we get:
[tex]V_2 = \frac{(1.90 \, \text{L} \times 0.1130 \, \text{mol})}{0.0920 \, \text{mol}}[/tex]
V2 ≈ 2.33 L
Therefore, the new volume of the balloon is approximately 2.33 liters.
In 1939, at the age of 20, a man stood 270 cm tall (over 8 1/2 feet) and wore size 37 shoes! The hormonal disorder from which he suffered is known as giantism. Too much of what hormone produced his condition?
Answer:
Somatotropin(Growth Hormone)
Explanation:
-Uncontrolled growth in a person is usually caused by the excessive secretion of growth hormone.
-This hormone is also known as Somatotropin.
-This hormone is produced in the pituitary gland.
________ promotes the formation of dilute urine?
Answer:
decreased osmolality of extracellular fluids
Explanation:
When there is decreased osmolality of extracellular fluids, there will be Volume depletion, or extracellular fluid (ECF) volume contraction, which occurs as a result of loss of total body sodium. Causes include vomiting, excessive sweating, diarrhea, burns, diuretic use, and kidney failure. In this way, sodium loss always causes water loss.
We eat food for energy. What is the source of energy for this food chain?