Bombardment of uranium-235 with a neutron generates tellurium-135, 3 neutrons, and ________.
Bombardment of uranium-235 with a neutron produces tellurium-135, three neutrons, and molybdenum-98.
When uranium-235 (U-235) is bombarded with a neutron, it first forms U-236, which is unstable.
This unstable isotope undergoes nuclear fission, resulting in the production of tellurium-135 (Te-135), three neutrons, and another element, which we need to determine.
In fission reactions, the sum of the atomic masses and the number of protons must be equal on both sides of the equation.
Here’s the reaction:
U-235 + neutron ⟶ Te-135 + 3 neutrons + X
Starting with 235 (U-235) + 1 (neutron) = 236 mass units total.
The mass of Te-135 is 135 units.
Since three neutrons (3 x 1 = 3 units) are produced, the remaining mass is:
236 - 135 - 3 = 98 units.
Since tellurium (Te) has an atomic number of 52, and assuming the fission product balances the protons and neutrons in the equation, the remaining fission product is molybdenum-98 (Mo-98) with an atomic number of 42.
Completing the equation:
U-235 + neutron ⟶ Te-135 + 3 neutrons + Mo-98.
A solution is made by dissolving 5.65 g of an unknown molecular compound in 110.0 g of benzene froze at 4.39 oc. what is the molar mass of the solute if pure benzene has a freezing point of 5.45 oc and the kf value of benzene is 5.07 oc/m
Final answer:
The correct answer is "245.76 g/mol". To find the molar mass of an unknown compound dissolved in benzene from the freezing point depression, the change in freezing point is calculated, then used with the freezing point depression formula to determine the molality. The molar mass is ultimately found by dividing the mass of the solute by the number of moles of solute calculated from the molality and mass of solvent.
Explanation:
To determine the molar mass of an unknown molecular compound from the freezing point depression in benzene, we first need to calculate the change in freezing point (ΔTf). Given that pure benzene freezes at 5.45 °C and the solution freezes at 4.39 °C, ΔTf is the difference between these two temperatures.
ΔTf = 5.45 °C - 4.39 °C = 1.06 °C
Using the formula for freezing point depression, ΔTf = i * Kf * m, where i is the van't Hoff factor (for a non-electrolyte, this is 1), Kf is the freezing point depression constant of benzene (5.07 °C/m), and m is the molality of the solution. Since we're looking for the molar mass of the solute, we rearrange the formula to find molality first: m = ΔTf / (i * Kf).
m = 1.06 °C / (1 * 5.07 °C/m) = 0.209 mol/kg
To find the molar mass, we need the number of moles of the solute, which is the mass of the solute divided by its molar mass. Given the mass of the solute is 5.65 g, and using the molality equation m = moles of solute / kg of solvent, we can find the number of moles of solute. Then, molar mass (M) = mass of solute / moles of solute.
Moles of solute = m * kg of solvent = 0.209 mol/kg * 0.110 kg = 0.02299 mol
Molar mass (M) = mass of solute / moles of solute = 5.65 g / 0.02299 mol ≈ 245.76 g/mol.
Write a balanced half-reaction for the reduction of dichromate ion cr2o−27 to chromium ion cr 3 in basic aqueous solution. be sure to add physical state symbols where appropriate.
Explanation:
When electrons are added in a reaction then it means reduction is taking place. Whereas removal of electrons from a chemical reaction is known as oxidation.
Oxidation state of chromium in [tex]Cr_{2}O^{2-}_{7}[/tex] is +6. So, its reduction half-reaction will be as follows.
[tex]Cr_{2}O_{7}^{2-} + 3e^{-1} \rightarrow Cr^{3+}[/tex]
Since it is given that reaction is taking place in basic solution. So, we add [tex]H_{2}O[/tex] on reactant side and [tex]OH^{-}[/tex] on the product side.
[tex]Cr_{2}O_{7}^{2-} + 3e^{-1} + H_{2}O \rightarrow Cr^{3+} + OH^{-}[/tex]
Now balancing Cr atom and charges on both sides, we get the following.
[tex]Cr_{2}O_{7}^{2-} + 6e^{-1} + 7H_{2}O \rightarrow 2Cr^{3+} + 14OH^{-}[/tex]
The balanced half-reaction for the reduction of dichromate ion Cr2O2−7 to chromium ion Cr3+ in basic aqueous solution is:
Cr2O2−7(aq) + 14 OH−(aq) + 6 e− → 2 Cr3+(aq) + 7 H2O(l)
What's the reaction about?Balance the chromium atoms. There are 2 chromium atoms on the left side and 2 on the right, so the equation is already balanced for chromium.
The final balanced equation is:
Cr2O2−7(aq) + 14 OH−(aq) + 6 e− → 2 Cr3+(aq) + 7 H2O(l)
The physical state symbols are also included in the balanced equation. The dichromate ion and the chromium ion are aqueous, the hydroxide ions are aqueous, and the water molecules are liquid.
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In the nuclear transmutation represented by 168o(p, \alpha) 137n, the emitted particle is ________.
Nuclear reaction: ¹⁶O + p⁺
→ ¹³N + α (alpha particle).
Alpha decay is radioactive decay in which an atomic nucleus emits
an alpha particle (helium nucleus) and transforms into an atom
with an atomic number that is reduced by two and mass
number that is reduced by four.
When oxygen-16 gain one proton, atomic mass is 17, but when lose alpha particle
atomic mass reduces by four to 13.
When two molecules of methanol (ch3oh) react with oxygen, they combine with three o2 molecules to form two co2 molecules and four h2o molecules. how many h2o molecules are formed when 66 methanol molecules react?
The number of water molecules formed when 66 molecules of ethanol react is; 132 molecules of water.
When two molecules of methanol react with oxygen.
They combine with three O2 molecules as implied in the question to form CO2 molecules and four H20 molecules.The reaction between methanol and oxygen is as follows;
2CH3OH + 3O2 --> 2CO2 + 4H2OAccording to the equation,
2 molecules of CH3OH = 4 molecules of H2OTherefore,
66 molecules of CH3OH = x molecules of H2OIn essence, the number of x molecules of water formed when 66 molecules of ethanol react is;
x = (66 × 4)/2x = 132 molecules of water.The number of water molecules formed when 66 molecules of ethanol react is; 132 molecules of water.
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propose a reasonable synthesis to get benzylamine from toluene
Final answer:
The synthesis of benzylamine from toluene involves an oxidation step to convert toluene to benzaldehyde followed by reductive amination with an amine such as methylamine to yield the desired benzylamine.
Explanation:
To propose a reasonable synthesis to get benzylamine from toluene involves several steps. Initially, toluene can be oxidized to benzaldehyde through the oxidation reaction. This would typically involve a reaction with an oxidizing agent like KMnO4 in an aqueous base or CrO3 with acidic conditions. Once benzaldehyde is obtained, the next step is to convert it into benzylamine. This can be achieved by the reductive amination process, where benzaldehyde can react with an amine such as methylamine and then be reduced, often using a reducing agent like NaBH4 or H2 with a catalyst. To ensure that the amine added is solely the benzyl amine desired, the N-alkylation can be controled through the choice of appropriate reagents and conditions.
One possible method would utilize methylamine in the presence of a reductive agent to convert the aldehyde group to the desired primary amine. The overall reaction from toluene to benzylamine would likely proceed with good to high yields, assuming that the correct reaction parameters and purification techniques are employed.
For a reaction to be spontaneous under standard conditions at all temperatures, the signs of δh° and δs° must be __________ and __________, respectively.
Final answer:
A reaction is spontaneous under standard conditions at all temperatures when ΔH° is negative and ΔS° is positive, leading to a negative Gibbs free energy change (ΔG°).
Explanation:
For a reaction to be spontaneous under standard conditions at all temperatures, the signs of ΔH° (ΔH degree) and ΔS° (ΔS degree) must be negative and positive, respectively. According to the Gibbs free energy equation, ΔG° = ΔH° - TΔS°, where T represents the absolute temperature in Kelvin. If ΔH° is negative (exothermic reaction) and ΔS° is positive (increase in entropy), the Gibbs free energy change (ΔG°) will always be negative, indicating that the reaction is spontaneous. Conversely, if ΔH° were positive and ΔS° negative, ΔG° would be positive and the reaction non-spontaneous at all temperatures.
Write the structural formula for aspirin. label the ester group and the carboxylic acid group
The formula of the asprin is C₉H₈O₄. Asprin is also called as acetylsalicylic acid
which is used as a drug in medical treatments. It is a synthetic derivative of
salicylic acid which is extracted from willow bark.
As the functional groups, asprin has 3 groups as
carboxylic acid group, ester group and aromatic ring. The structure is as the
image.
The structural formula of aspirin is C9H8O4. The ester group in aspirin is -COO- and the carboxylic acid group is -COOH.
The structural formula of aspirin is C9H8O4. The ester group in aspirin is -COO- and the carboxylic acid group is -COOH. The structural formula can be represented as:
C6H4OH(CO)O using the circled atoms as reference points for the acid part of the molecule.
He rate constant for the forward reaction, k1, is 297 l·mol–1·min–1 and the rate constant for the reverse reaction, k–1, is 393 l·mol–1·min–1 at a given temperature. the activation energy for the forward reaction is 42.1 kj·mol–1, while the activation energy for the reverse reaction is 22.1 kj·mol–1. determine the equilibrium constant, k, of this reaction.
The equilibrium constant is a number that shows the extent to which reactants are converted into products. The equilibrium constant of the reaction is 0.76.
What is equilibrium constant?The equilibrium constant is a number that shows the extent to which reactants are converted into products.
We know that to obtain the equilibrium constant; K = k1/k-1 where;
k-1 = rate constant of reverse reaction
k1 = rate constant of forward reaction.
Hence;
K = 297 l·mol–1·min–1/393 l·mol–1·min–1
K = 0.76
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During an oxidation-reduction reaction, the number of electrons gained is
A) equal to the number of electrons lost
B) equal to the number of protons gained
C) less than the number of electrons lost
D) less than the number of protons gained
During a redox reaction, the number of electrons gained is equal to the number of electrons lost, demonstrating the law of conservation of charge.
Explanation:In an oxidation-reduction reaction, also known as a redox reaction, the number of electrons gained is equal to the number of electrons lost. This principle is known as the law of conservation of charge which states that the total charge before a reaction must equal the total charge after the reaction.
So, when one substance loses electrons (oxidation), another must gain them (reduction). Therefore, the correct answer is A) equal to the number of electrons lost.
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Give the percent yield when 28.16 g of co2 are formed from the reaction of 4.000 moles of c8h18 with 4.000 moles of o2. 2 c8h18(l) + 25 o2(g) → 16 co2(g) + 18 h2o(g) molar mass co2 = 44.01 g/mol
The percent yield of CO2 is calculated by dividing the actual yield (28.16 g of CO2) by the theoretical yield determined from the stoichiometry of the balanced chemical equation and the limiting reactant, and then multiplying by 100 to get the percentage.
Explanation:Percent Yield CalculationThe question asks for the percent yield of CO2 produced from the reaction of C8H18 with O2. First, we need to consider the balanced chemical equation:
Write the balanced chemical equation: 2 C8H18(l) + 25 O2(g)Therefore, the percent yield can be calculated by dividing the actual yield of CO2 (28.16 g) by the theoretical yield (calculated in step 4), and then multiplying by 100 to get a percentage.
The (C4H1 0)3N represents a___ amine.
A. Primary
B. Secondary
C. Tertiary
Answer :The correct answer for (C₄H₁₀ )₃ N is C) TERTIARY AMINE .
The substitution level of nitrogen in amine or in simple words , description of carbon atoms attached to a given nitrogen in any amine is of 4 types :
1 ) Primary amine :
When the given nitrogen is attached to only one carbon then substitution level is known as PRIMARY amine.
Example : CH₃NH₂ : The nitrogen is attached to only one carbon (CH₃) . Hence it is primary amine
2) Secondary amine :
When the given nitrogen is attached to two carbons .
Example : (CH₃)₂NH : The nitrogen is attached to two carbon ( CH₃)₂ , hence it is secondary amine .
3) Tertiary amine :
When the given nitrogen is attached to three carbon atom .
Example : (CH₃)₃NH : The nitrogen is attached to 3 carbons atoms (CH₃)₃ . Hence it is a tertiary amine
4) Quaternary amine : when the nitrogen attached to 4 carbon atoms and amine posses a positive charge on it , its is known as quaternary amine .
Example : (CH₃)₄N⁺ : The nitrogen is attached to 4 carbons and nitrogen . hence it is quaternary amine .
(Image attached )
The given compound is (C₄H₁₀ )₃ N has 3 groups of C₄H₁₀ attached to N , means 3 carbons attached to N , ( image attached ) . Hence it can be said that (C₄H₁₀ )₃ N is TERTIARY AMINE .
Hence correct option is C) Tertiary amine .
Predict which substance in each pair has greater molar entropy. (1) no2(g) n2o4(g) (2) ch3och3(l) ch3ch2oh(l) (3) hcl(g) hbr(g)
The substances with greater molar entropy in each case are: NO2(g), CH3OCH3(l), and HBr(g), due to factors such as number of atoms, molecule complexity and being heavier gases.
Explanation:In predicting the substance with greater molar entropy in each pair, we have to consider the number of molecules and atoms, phase of matter and complexity of molecules. Here are the predicted substances:
NO2(g) - This molecule is monatomic when compared to N2O4. Molecules with more atoms have higher positional entropy, hence NO2 has higher molar entropy.CH3OCH3(l) - This is a more complex molecule as compared to CH3CH2OH. More complex molecules have higher entropy as there are more possible configurations of their atoms.HBr(g) - This substance is a gas and contains bromine which is heavier than chlorine in HCl. Heavier gases have larger molar entropy. Learn more about Molar Entropy here:https://brainly.com/question/32107086
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If you start with 4.0 grams of sodium flouride (NaF), how many grams of magnesium flouride (MgF2) will be produced? The molar mass of NaF is 42g/mole and the molar mass of MgF2 is 62g/mole.
A sample of gas occupies 10.0 l at 100.0 torr and 27.0
c. calculate the pressure if the temperature is changed to 127c while the volume remains constant. (133 torr)
To calculate the new pressure of a gas when the temperature changes and volume remains constant, we apply Gay-Lussac's Law, which involves converting temperatures to Kelvin and using the relationship P1/T1 = P2/T2.
Explanation:The student's question involves calculating the pressure of a sample of gas when the temperature is changed while keeping the volume constant. This is a typical problem you might encounter in a chemistry class when discussing gas laws, specifically relating to Gay-Lussac's Law, which states that the pressure of a gas is directly proportional to its absolute temperature, provided that the volume remains constant.
Since the volume is constant, we can use the Gay-Lussac's Law formula: P1/T1 = P2/T2, where P1 and T1 are the initial pressure and temperature, and P2 and T2 are the final pressure and temperature, respectively. Remember to convert temperatures to Kelvin. Initially, we have P1 = 100.0 torr and T1 = (27.0 + 273.15) K. The final temperature is T2 = (127 + 273.15) K. Solving for P2, we get the final pressure.
List the following compounds in decreasing electronegativity difference. cl2 hcl nacl
The decreasing electronegativity difference in the compounds is NaCl > HCl > Cl2. NaCl has the highest electronegativity difference, forming an ionic compound, then HCl forms a polar covalent bond, and Cl2, made of two identical atoms, has no electronegativity difference.
Explanation:The compounds Cl2, HCl, and NaCl possess varying degrees of electronegativity difference depending on the atoms involved. Electronegativity is the ability of an atom to attract shared electrons in a bond. In NaCl (sodium chloride), the electronegativity difference is very high as it consists of a metal (sodium) and a non-metal (chlorine).
This forms an ionic compound, which is generally formed when there is a high electronegativity difference. On the other hand, Cl2 (chlorine gas) possesses no electronegativity difference as it is a molecule composed of two identical atoms. Finally, HCl (hydrogen chloride) has a considerable but not extreme electronegativity difference because it consists of two non-metals. This forms a polar covalent bond.
In summary, the decreasing electronegativity difference would be: NaCl > HCl > Cl2.
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What volume of chlorine is required to produce 25.4?
Ksp [caso4] = 2.4 × 10-5. determine the molar solubility of caso4 in a solution containing 0.100 m na2so4.
The molar solubility of CaSO4 in a solution containing 0.100 M Na2SO4 is 2.4 x 10−4 M, calculated using the Ksp value and the concentration of sulfate ions due to the common ion effect.
Explanation:The molar solubility of CaSO4 in a solution containing 0.100 M Na2SO4 can be calculated using the solubility product constant (Ksp) and the concept of common ion effect. The solubility product expression for CaSO4 can be written as Ksp = [Ca²+ ][SO4²−]. Since the sodium sulfate solution already contains sulfate ions, we will consider the concentration of [SO4²−] as 0.100 M given in the question. The equation simplifies to Ksp = [Ca²+]*0.100. Therefore, the molar solubility is [Ca²+]= Ksp/0.100 which is 2.4 x 10−5/0.100 = 2.4 x 10−4 M. This suggests that in a 0.100 M Na2SO4 solution, additional CaSO4 would start precipitating when the [Ca²+] reaches 2.4 x 10−4 M.
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The molar solubility of CaSO₄ in a solution containing 0.100 M Na₂SO₄, with a Ksp of 2.4 × 10⁻⁵ is 2.4 × 10⁻⁴ M, which is lower than in pure water due to the common ion effect.
Calculating the molar solubility of calcium sulfate (CaSO₄) in a solution containing 0.100 M sodium sulfate Na₂SO₄ given the solubility product constant (Ksp) for CaSO₄ is 2.4 × 10⁻⁵.
Because Na₂SO₄ dissociates into 2 Na⁺ and 1 SO₄²⁻ in solution, the concentration of SO₄²⁻ due to Na₂SO₄ is 0.100 M. Since the solution is already saturated with sulfate ions, the molar solubility of CaSO₄ will be different from its solubility in pure water. The common ion effect will reduce the solubility of CaSO₄ in the solution.
To find the molar solubility of CaSO₄, let's set up the equation based on the Ksp expression:
Ksp = [Ca²⁺] [SO₄²⁻]
Since the concentration of SO₄²⁻ from Na₂SO₄ is already 0.100 M, and the Ksp for CaSO₄ is 2.4 × 10⁻⁵, the molar solubility of CaSO₄ in this solution is calculated as:
Ksp = (s) × (0.100 M)
2.4 × 10⁻⁵ = (s) × (0.100 M)
s = 2.4 × 10⁻⁴ M
Therefore, the molar solubility of CaSO₄ in a 0.100 M Na₂SO₄ solution is 2.4 × 10⁻⁴M.
A 10.0-ml sample of 0.200 m hydrocyanic acid (hcn) is titrated with 0.0998 m naoh. what is the ph at the equivalence point? for hydrocyanic acid, pka = 9.31
The pH at the equivalence point of the titration can be calculated using the Henderson-Hasselbalch equation. The pH at the equivalence point is 9.31.
Explanation:The pH at the equivalence point of the titration can be calculated using the Henderson-Hasselbalch equation. The equivalence point occurs when the moles of hydrocyanic acid (HCN) is equal to the moles of sodium hydroxide (NaOH).
In this case, the hydrocyanic acid (HCN) is a weak acid, and the sodium hydroxide (NaOH) is a strong base. At the equivalence point, the weak acid is completely neutralized by the strong base, forming the conjugate base of the acid.
Using the Henderson-Hasselbalch equation, we can calculate the pH at the equivalence point:
pH = pKa + log([A-]/[HA])
The concentration of the hydrocyanic acid (HCN) is 0.200 M, and since hydrocyanic acid is a weak acid, its concentration can be assumed to remain nearly constant during the titration. Therefore, the concentration of the conjugate base at the equivalence point is also 0.200 M.
Plugging in the values, we have:
pH = 9.31 + log(0.200/0.200) = 9.31
So, the pH at the equivalence point is 9.31.
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How many liters of 0.45 m hcl will be required to titrate completely 1.2 l solution of 0.22 m naoh? show your work?
ASAP HELP GIVING TO CORRECT PERSON A BRAINLIEST REWARD
Cellulose is a polymer that makes up plant cell walls. Cellulose is made from a chain of C6H10O5 molecules.
Which monomers are most likely used to produce cellulose?
a)nucleotides and amino acids
b)glucose molecules
c)nucleotides
d)amino acids
Answer:
Answer is B
Explanation:
Write the balanced chemical equation for the reaction of the weak acid hcn with water. include the phase of each species.
The weak acid HCN reacts with water through acid ionization, forming hydronium ions and cyanide ions. This reaction can be represented with the balanced chemical equation: HCN(aq) + H₂O(l) ⇌ H₃O⁺(aq) + CN⁻(aq).
Explanation:
The weak acid HCN (hydrogen cyanide) reacts with water through a process called acid ionization. In this reaction, a hydrogen ion (H+) is transferred from the weak acid to a water molecule, leading to the formation of hydronium ions (H3O+), and the cyanide ion (CN-). The balanced chemical equation outlining this reaction is:
HCN(aq) + H₂O(l) ⇌ H₃O⁺(aq) + CN⁻(aq)
In this equation, the (aq) annotation indicates that the species is in the aqueous - or water - phase, while (l) indicates the liquid phase for water.
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What is the de broglie wavelength of a 0.17-kg hockey puck moving at 37 m/s ?
The wavelength of a hockey of mass 0.17kg traveling at a speed of37 m/s can be calculated by using De Broglie's equation and it comes out to be 1.05m×10⁻³⁴m.
What is De Broglie's equation?
The De Broglie's equation is an equation which shows that a particle has a wave length and hence particle can show wave nature. Any matter can have two nature one is particle nature and other is wave nature.
The wave nature in a particle was given by De Broglie Particle nature of a matter can be described by the phenomenon of black body radiation. Photoelectric effect two shows particle nature nature of light.
Mathematically,
[tex]{\lambda}=\frac{h}{mv}[/tex]
where,
[tex]{\lambda}[/tex]=wavelength=?
m=mass of hockey=0.17kg
h=Plank's constant
v=velocity of hockey=37 m/s
Substituting all given values in the equation
[tex]\lambda[/tex]= (6.626×10⁻³⁴)÷(0.17kg ×37 m/s )=1.05m×10⁻³⁴m
Thus the wavelength of motorcycle is 1.05m×10⁻³⁴m.
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In processes that produce electricity, some of the energy used is wasted as _____ energy.
Select one:
a. heat
b. chemical
c. kinetic
d. light
How many milliliters of 0.564 m hcl are required to react with 6.03 grams of caco3 ?
What is the total mass of products formed when 16 grams of ch4?
The total mass of the products formed when 16 grams of methane (CH4) is combusted is equal to the mass of the reactants, which is also 16 grams, when not considering the massless product, heat.
Explanation:The student is asking about the total mass of products when 16 grams of methane (CH4) is combusted. Combustion of methane is represented by the balanced chemical equation CH4(g) + 2O2(g) → CO2(g) + 2H2O(l) + energy. To find the total mass of the products, we would need to use stoichiometry to convert the mass of CH4 to moles, then use the balanced equation to find the moles of the products CO2 and H2O. Since mass is conserved, the total mass of reactants will equal the total mass of products. However, heat is also a product of the reaction, which is not measured by mass.
In this question, the student has mentioned specific molecular quantities, but since the aim is to determine the mass of products from 16 grams of methane, we don't need to consider these quantities. What we need is the concept that the mass of reactants equals the mass of products in a chemical reaction, where the mass of gaseous products is part of the overall calculation. Heat, despite being a part of the product side of the equation, does not contribute to the mass.
Therefore, the total mass of the CO2 and H2O produced from 16 grams of methane will also be 16 grams, neglecting energy. It is crucial to emphasize that this is a theoretical approach assuming complete combustion and no mass loss during the reaction.
which of the following naturally orccuing radioisotopes would be most useful in dating objects
what is the name of this molecule? h3c-c=c-ch3
Answer : The name of the given molecule is 2-butene or but-2-ene
Explanation :
Step 1 : Find the longest carbon chain.
The longest carbon chain for the given structure contains 4 carbons.
This will help us to find out the prefix for our parent compound.
The alkane with 4 carbons is "Butane"
Therefore our parent compound will have the prefix is "but"
Step 2 : Find the functional group
The functional group is the group that gives specific characteristics to the compound. In this case, we have a double bond in the structure which behaves as a functional group.
Therefore the functional group here is "Alkene"
Functional groups helps us to find the suffix of the name. In this case it is "ene"
Therefore our parent compound is but+ene = butene
Step 3 : Find the position of the double bond
The double bond is present between second and third carbon atom.
We always select the lower number to denote the position of the bond.
So we have 2-butene OR but-2-ene
There are no substituents present in this compound.
Therefore the name of the compound is 2-butene or But-2-ene
The molecule represented by H3C-C=C-CH3 is named But-2-ene, according to the IUPAC nomenclature system.
Explanation:H3C-C=C-CH3 is named But-2-ene, according to the IUPAC nomenclature system. The molecule represented by the formula H3C-C=C-CH3 is named But-2-ene. In this name, 'But' refers to the four carbon atoms that form the base of the molecule, '-2-' indicates that the double bond is between the second and third carbon atom, and 'ene' signifies the presence of a carbon-carbon double bond in the molecule. This nomenclature is part of the International Union of Pure and Applied Chemistry (IUPAC) system, which is a standardized method for naming chemical compounds.
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___ + ___ = H2O + LiBrO3 Complete and balance the equation representing neutralization reaction.
The complete and balanced neutralization reaction is HBrO₃(aq) + LiOH(aq) → H₂O(l) + LiBrO₃(aq), where hydrobromic acid reacts with lithium hydroxide to produce water and lithium bromate.
Explanation:
The student's question pertains to completing and balancing a chemical equation for a neutralization reaction. In a neutralization reaction, an acid and a base react to form water and a salt. To complete and balance the given equation ___ + ___ = H₂O + LiBrO₃, we need to identify the acid and the base that will produce lithium bromate (LiBrO₃) and water.
The balanced equation for this reaction is:
HBrO₃(aq) + LiOH(aq) → H₂O(l) + LiBrO3(aq)Here, hydrobromic acid (HBrO₃) reacts with lithium hydroxide (LiOH), producing water (H₂O) and lithium bromate (LiBrO₃). This equation is balanced as written, with one mole of HBrO₃ reacting with one mole of LiOH to produce one mole of water and one mole of LiBrO₃.
.War nickels, produced from 1942-1945 are composed of 56% copper, 35% silver and 9% manganese. How many moles of each element are found in a 5.00 g nickel coin?