Answer:
cesium
Explanation:
The most reactive metal on the periodic table is francium. However, francium is a man-made element and only minute quantities have been produced, so for all practical purposes, the most reactive metal is cesium. Cesium reacts explosively with water, though it is predicted francium would react even more vigorously.
classify the reaction type 2LiBr+Pb(NO3)
Answer:
Double displacement reaction
Explanation:
Lithium bromide and lead nitrate would react in a double displacement reaction. Both compounds are solution and would dissociate completely.
In this type of reaction, there is an exchange of ions to form new ones:
2LiBr + Pb(NO₃)₂ → 2LiNO₃ + PbBr₂
The reaction produces a precipiate in form of the lead bromide that is formed. The lithium nitrate is deliquescent and it remains as solution when it forms.
Heat flows from water in one container to another. What difference between the two samples of water causes heat to flow?
Answer:
Difference in temperature
Explanation:
Temperature is the degree of hotness or coldness of a body. The difference in temperature between two bodies enables heat transfer from the hotter body to the colder one. If two bodies are at the same temperature, heat transfer will not occur between them. This why in the vicinity of hot water, a cold water becomes warmer.
How many molecules of Ca are found in a sample with 0.2 mols?
Answer:
[tex]\boxed{1.2 \times 10^{23}\text{ atoms}}[/tex]
Explanation:
6.023 × 10²³ atoms of Ca are in 1 mol of Ca
[tex]\text{No. of atoms} = \text{0.2 mol} \times \dfrac{6.023 \times 10^{23}\text{atoms }}{\text{1 mol }} = \mathbf{1.2 \times 10^{23}} \textbf{ atoms}}\\\\\text{There are }\boxed{\mathbf{1.2 \times 10^{23}} \textbf{ atoms}} \text{ atoms in 0.20 mol of Ca}[/tex]
what is the volume of an oxygen tank if it contains 12 moles of oxygen at 273K under 75kPa?
Answer:
Explanation:
Given parameters:
Number of moles = 12moles
Temperature = 273K
Pressure = 75kPa, convert to atm:
1kPa = 0.00986923atm
75kPa = 75 x 0.00986923 = 0.74atm
Unknown:
Volume of the oxygen gas
Solution:
We simply apply the idea gas law which is :
PV = nRT
Since the unknown is volume, we make it the subject of the formula:
V = [tex]\frac{nRT}{P}[/tex]
R is the gas constant and its value is given as 0.082
V = [tex]\frac{12 x 0.082 x 273 }{0.74}[/tex] = 363.01L
which one is not required for reaction of nitrogen with hydrogen to form ammonia gas?
1.uv light 2.high pressure
3.high temperature 4.iron catalyst
Answer:
1.uv light not required
The condition that is not required for the formation of ammonia using nitrogen and hydrogen is UV light. Instead, high temperature, high pressure, and an iron catalyst are used in the process.
Explanation:The reaction of nitrogen with hydrogen to form ammonia gas, also known as the Haber process, typically involves high temperature, high pressure, and the use of an iron catalyst. This reaction process includes a high-pressure condition (~150-250 atm), to favor ammonia production. It also needs a temperature of around 400-500 °C, although lower temperature favors the exothermic reaction, a compromise is reached to achieve a reasonable reaction rate. The iron catalyst is used to accelerate the reaction.
However, the one condition that is not required for the formation of ammonia from nitrogen and hydrogen is the exposure to ultraviolet (UV) light. UV light is not needed to trigger or maintain the reaction, rather the combination of pressure, heat, and the catalyst does the job. Therefore, among the given options, UV light is not necessary for the production of ammonia in the Haber process.
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What is the molar mass of C6H1206?
Answer:
180.156 g
Glucose has six carbons, twelve hydrogens, and six oxygen atoms. Using the periodic table, the atomic weight of C, H, and O are obtained. So the molar mass of C6H12O6 is 72.06 g + 12.096 g + 96.00 g = 180.156 g or 180.16 g
The molar mass of glucose (C6H12O6) is calculated by summing the molar masses of its constituent atoms, carbon, hydrogen, and oxygen, resulting in a total molar mass of 180.0 g/mol.
Explanation:The question asks for the molar mass of glucose with the chemical formula C6H12O6. The molar mass of a compound is calculated by summing the molar masses of its constituent atoms. Given the atomic masses of Hydrogen (H) as 1.0 g/mol, Carbon (C) as 12.0 g/mol, and Oxygen (O) as 16.0 g/mol, we calculate the molar mass of glucose as follows:
Carbon (C): 6 atoms × 12.0 g/mol = 72.0 g/molHydrogen (H): 12 atoms × 1.0 g/mol = 12.0 g/molOxygen (O): 6 atoms × 16.0 g/mol = 96.0 g/molAdding these values gives a total molar mass of 180.0 g/mol for glucose. This calculation is crucial for understanding how much glucose is needed for chemical reactions and solutions in both laboratory and real-world applications.
A 5 L tank of oxygen with a pressure of 23 atm is moved from room temperature of 293 K to a storage freezer at 230 K. What is the final pressure inside the tank?
A. 29.0 atm
B. 18.05 atm
C. 3.61 atm
D. 2.74 atm
Answer: The final pressure inside the tank will be B. 18.05 atm. Gay-Lussac's law is used to predict the changes in pressure or temperature of gases. According to this law, there is a direct relationship between pressure and temperature. As the temperature of gas increases, so, too, will the pressure increase and vice versa.
Further Explanation:
We use the mathematical expression of Gay-Lussac's law to find the final pressure in the tank:
[tex]\frac{P_{initial}}{T_{initial}} \ = \frac{P_{final}}{T_{final}}[/tex]
It is very important to note that when using this equation, all temperatures must be expressed in Kelvin. The conversion from degree Celsius to Kelvin is:
[tex]T \ (in \ K) \ = T \ (in \ deg.\ C) \ +\ 273.15[/tex]
In the problem, we are given the following information:
P(initial) = 23 atm
T(initial) = 293 K
P(final) = ?
T(final) = 230 K
Plugging in these values in the Gay-Lussac Equation, we get:
[tex]\frac{23\ atm}{293 \ K} \ = \ \frac{P_{final}}{230\ K} \\P_{final} \ = \frac{(23 \ atm) \ (230 \ K)}{293 \ K}\\P_{final} \ = \ 18.05 \ atm[/tex]
The tank was moved from a hotter to a cooler place. At cooler temperatures, gas particles move slower and frequency and strength of their collisions with each other and the wall of the containers decrease. This leads to a decrease in the pressure. Thus, the pressure drops from 23 atm to 18.05 atm when the tank is inside the freezer.
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Learn more about Charles' Law https://brainly.com/question/7259721Learn more about Ideal Gas Law https://brainly.com/question/4147359Learn More about Boyle's Law https://brainly.com/question/8511562Keyword: Gas Pressure, Temperature, Gay-Lussac's Law
Answer:
B.) 18.05 atm
Explanation:
I got it right on founders edtell
For the reaction 2Fe+3Cl2=2FeCl3
The question is incomplete but the full question may be found in other sources.
This is the complete question:
For the reaction 2Fe + 3Cl₂ → 2FeCl₃ which option is more accurate?a. FeCl₃, reducing agent; Fe, oxidizing agent.
b. Cl₂, oxidising agent; Fe reducing agent.
c. Fe, reducing agent; FeCl₃, oxidizing agent.
d. FeCl₃, oxidizing agent, Cl₂, reducing agent.
Answer:
Option b. Cl₂, oxidising agent; Fe reducing agent.Explanation:
It is easy to recognize by simple inspection that the given reaction is a redox one (oxidation - reduction) because the substances in the reactant side are pure elements (whose oxidation state is always zero) and the substance in the product side is a compound formed by the two reactant elements (which means that now they have a different oxidation state).
In a redox reaction, the element that increases its oxidation number loses electrons and reduces other element, so this is the reducing agent. On the other hand, the element whose oxidation number is decreased has gained electrons, a so it is the oxidizing agent (it oxidizes other element).
I will show the oxidation states of each species in the chemical reaction, using superscripts:
Fe⁰ + 3Cl₂⁰ → 2 Fe⁺³Cl₃⁻¹Thus:
2 atoms of Fe increased their oxidation number from 0 to +3; meaning that they lost 6 electrons (3 electrons each), so Fe is the reducing agent (it reduced the Cl atoms).6 atoms of Cl decreased their oxidation number from 0 to -1; meaning that they gained 6 electrons in total (1 elecron each), so Cl is the oxidizing agent (it oxidized the Fe atoms).Mushrooms play look like plants but you’re actually fungi what is the similarities and differences between fungi and plants
Answer:
Explanation:
Similarities
Both fungi and plants are multicellular organisms with different cells performing various life functions. They are both eukaryotic organisms with membrane bound organelles and having a distint nucleus. Fungi and plants are generally fixed and they do not move from one place to another like animals.Differences
Plants produce their own food and are called autotrophs while most fungi are heterotrophs that feeds on chemical matter from producers. Plants are producers in the ecosystem while fungi are decomposers. Plants reproduce using seeds while fungi use sporesIn plants, food produced are stored as starch whereas in fungi, food is stored as glycogen. Examples of plants are orange, mango, banana while mushrooms are fungi. Most plants are generally green in color while fungi are of different colors and are commonly white.Which of the following is not true about compounds?
Compounds are combinations of elements that join in specific ratios.
A specific compound always has the same mass ratio of its components.
Elements can combine in any proportion to form a compound.
Different mass ratios of components mean different compounds.
Answer:
Elements can combine in any proportion to form a compound. -third choice
Answer:
C. Elements can combine in any proportion to form a compound.
Explanation:
50 ml decimolar H2SO4 when mixed with 50 ml decimolar NaOH then normality of resultant solution is ?
Answer:
0.05 NExplanation:
You can calculate the normality of an acid by multiplying the molarity by the number of acid hydrogens. So, the normality for H₂SO₄ is its molarity multiplied by 2.
For bases, the normality is the product of the molarity and the number of OH⁻ ions. So, for NaOH the normality is its same molarity.
Also remember the definitions and formulae:
Molarity = number of moles of solute / volume in liters of the solutionNormality = number of equivalents of solute / volume in liters of solutionNormality = molarity × number of hydrogens or OH⁻.The chemical equation for the reaction of H₂SO₄ with NaOH is:
H₂SO₄ + 2 NaOH → Na₂SO₄ + 2 H₂OAs you see, the mole ratio is 1 mol H₂SO₄ : 2 mol NaOH meaning that every mol of H₂SO₄ neutralizes 2 moles of NaOH.
Since both reactants have the same molarity (decimolar = 0.1M) and the same volume, there are the same number of moles of each, but they have different normalities, which means different number of equivalents.
At the same molarity, the number of equivalents of H₂SO₄ is double than the number of equivalents of NaOH.
Then, after reaction half the number of equivalents of H₂SO₄ will remain in solution. The calculations are:
Before reacting:Number of moles of each compound before reacting:
H₂SO₄: 0.050 liter × 0.1 M = 0.005 mol
NaOH: 0.050 liter × 0.1 M = 0.005 mol
After reacting:Since ther reaction is 1 mol acid : 2 moles base, the base is the limiting reactant (it will be fully consumed).
Only 0.005 / 2 mol of acid will react and 0.005 / 2 mol will remain in solution. That is 0.0025 mol.
The volume of the solution will be 50 ml + 50 ml = 100 ml = 0.10 liter
So, after reaction you have:
Molarity of acid = 0.0025 mol / 0.10 liter = 0.025 M.
Normality of acid = 0.025 × 2 = 0.05 N ← answerhow many moles of nitrogen are there in 6.8 liters at standard temperature and pressure?
Answer:
Explanation:
Given parameters:
Volume of gas at STP = 6.8L or 6.8dm³
Condition: Standard Temperature and Pressure
Solution:
For gases at standard temperature and pressure,
number of moles = [tex]\frac{volume of occupied}{22.4}[/tex]
number of moles = [tex]\frac{6.8}{22.4}[/tex] = 0.3moles
A 49.3 sample of CaCO3 was treated with aqueous H2SO4, producing calcium sulfate, 3.65 g of water and CO2(g). What was the % yield of H2O?
Answer:
41.1%
Explanation:
First write the balanced reaction:
CaCO₃ + H₂SO₄ → CaSO₄ + H₂O + CO₂
Now calculate the theoretical yield:
49.3 g CaCO₃ × (1 mol CaCO₃ / 100 g CaCO₃) = 0.493 mol CaCO₃
0.493 mol CaCO₃ × (1 mol H₂O / 1 mol CaCO₃) = 0.493 mol H₂O
0.493 mol H₂O × (18 g H₂O / mol H₂O) = 8.87 g H₂O
Now calculate the % yield:
3.65 g H₂O / 8.87 g H₂O × 100% = 41.1%
Answer:
[tex]\boxed{\text{41.1 \%}}[/tex]
Explanation:
MM: 100.09 18.02
CaCO₃ + H₂SO₄ ⟶ CaSO₄ + H₂O + CO₂
m/g: 49.3 3.65
1. Theoretical yield
(a) Moles of CaCO₃
[tex]\text{Moles of CaCO${_3}$} = \text{49.3 g CaCO${_3}$} \times \dfrac{\text{1 mol CaCO${_3}$}}{\text{100.09 g CaCO${_3}$}} = \text{0.4926 mol CaCO${_3}$}[/tex]
(b) Moles of H₂O
[tex]\text{Moles of H${_2}$O} = \text{0.4926 mol CaCO${_3}$} \times \dfrac{\text{1 mol H${_2}$O}}{\text{1 mol CaCO${_3}$}} = \text{0.4926 mol H${_2}$O}[/tex]
(c) Theoretical mass of H₂O
[tex]\text{Mass of H${_2}$O} = \text{0.4926 mol H${_2}$O} \times \dfrac{\text{18.02 g H$_{2}$O}}{\text{1 mol H${_2}$O}} = \text{8.88 g H${_2}$O}[/tex]
(d) Percent yield
[tex]\text{Percent yield} = \dfrac{\text{ actual yield}}{\text{ theoretical yield}} \times 100 \% = \dfrac{\text{3.65 g}}{\text{8.88 g}} \times 100 \% = \textbf{41.1 \%}\\\\\text{The percent yield is }\boxed{\textbf{41.1 \%}}[/tex]
Global climatic patterns are changing because of the melting of polar ice caps. The melting of polar ice caps is an example of the interaction between the
Final answer:
The melting of polar ice caps is related to global climate change resulting from enhanced greenhouse effect due to elevated atmospheric carbon dioxide levels, which affects weather patterns and increases Earth's temperatures.
Explanation:
The melting of polar ice caps is an example of the interaction between various components of Earth's system, including the atmosphere, hydrosphere, cryosphere, lithosphere, biosphere, and anthrosphere. This process is intricately linked to the concept of global climate change, which encompasses altered global weather patterns, changes in temperature, and shifts in other climatic factors. Such changes are often attributed to rising levels of atmospheric carbon dioxide and other greenhouse gases, which trap heat and contribute to the warming of Earth's surface, known as the greenhouse effect.
As the planet's temperature increases, ice caps and glaciers, such as those in Greenland and Antarctica, melt at an accelerated rate. This melting contributes to global climate change by affecting sea levels, weather patterns, and other ecological phenomena. As such, understanding the changes in Earth's ice caps and their impact is crucial to gauging the full scope of climate change and its implications for modern civilization, including ecosystem dynamics and the potential hazards to human life and infrastructure.
Two scientists did the same experiment but arrived at different results. The results would most likely be ?
Answer:
They did not have accurate data and information.
Answer:
Provide new testable ideas.Explanation:
Supposing that both scientific had objectivity and no bias in their research, the results most likely provide new testable ideas. This type of situation occurs when new theories are being proved for first time. Most of people thing that scientific laws were proved in one experiment, but the reality is that experiments need plenty reproductions, even after hundreds of years of research.
An oxygen atom has a mass of 2.66*10^-23 and a glass of water has a mass of 0.050 kg. What is the mass of 1 mole of oxygen atoms? Round your answer to 3 significant digits. How many moles of oxygen atoms have a mass equal to the mass of a glass of water? Round your answer to 2 significant digits.
Answer:
16.0 g; 3.1 mol
Explanation:
(a) Mass of O atoms
Mass = 6.022 × 10^23 atoms × (2.66 × 10^-23 g/1 atom) = 16.0 g
(b) Moles of O atoms
0.050 kg = 50 g
Moles = 50 g × (1 mol/16.0 g) = 3.1 mol
Answer : The mass of 1 mole of oxygen atoms is, 16.0 grams
The moles of oxygen atoms is, 3.1 moles
Explanation :
First we have to calculate the mass of 1 mole of oxygen atoms.
Given : Mass of 1 oxygen atom = [tex]2.66\times 10^{-23}g[/tex]
As, 1 atom of oxygen has mass = [tex]2.66\times 10^{-23}g[/tex]
So, [tex]6.022\times 10^{23}[/tex] atom of oxygen has mass = [tex](6.022\times 10^{23})\times (2.66\times 10^{-23})=16.0g[/tex]
Thus, the mass of 1 mole of oxygen atoms is, 16.0 g
Now we have to calculate the moles of oxygen atoms.
As per question, the mass of oxygen atoms = mass of a glass of water = 0.050 kg = 50 g
Formula used :
[tex]\text{Moles of oxygen atoms}=\frac{\text{Mass of oxygen atoms}}{\text{Molar mass of oxygen atoms}}[/tex]
Molar mass of oxygen atom = 16 g/mole
[tex]\text{Moles of oxygen atoms}=\frac{50g}{16g/mole}=3.1mole[/tex]
Therefore, the moles of oxygen atoms is, 3.1 moles
Question 6 of 10
5 Points
Put these time divisions in order, from longest to shortest.
Epoch
11 Eon
1
Period
Answer:
çok güzel olmuş teşekkürler hocam yorumu siz yapabilirsiniz ve bana göre bu ne biçim ve doğru olarak verilmiştir denildi bu kadar güzel ve yeni bölümleri ile birlikte eğlenelim bu arada yay ve doğru bir karar aldık ve doğru şekilde
Answer:
eon ,era ,period ,epoch.
If 6 times a certain number is added to 8, the result is 32
Answer: 6 x 4 = 24
24 + 8 = 32
The unknown number multiplying 6 is 4. We know this because if we subtract 8 from 32 we get 24, the sum of 6 x 4.
How many moles are present in 110 grams of LiF? Show your work in the space below
A. 4.2
B. 5.2
C. 2.1
D. 8.4
Answer:
Answer choice A.
Explanation:
Li has an atomic mass of 6.941. F has an atomic mass of 18.998. Combine these to get 25.939 amu/grams. Take the 110 and divide it by 25.939 to get about 4.2. Hope this helps :)
One equation for the number of moles in a compound:
[tex]number.of.moles = \frac{mass}{mr}[/tex]
(note: Mr is the combined molecular mass of the compound.)
__________________________________
On the periodic table:
Lithium (Li) has a molecular mass of around 7
Fluorine (F) has a molecular mass of around 19.
-------------------------------
So the total Mr of Lithium Fluoride (LiF) is:
7 + 19 = 26
________________________________________
Now to work out the number of moles, we just divide the mass (in grams) of the compound by the Mr of the compound (as in the formula):
[tex]number.of.moles = \frac{mass}{mr}[/tex]
[tex]number.of.moles = \frac{110}{26}[/tex]
[tex]number.of.moles = 4.2[/tex]
_______________________________
Answer:
A) 4.2
The vapor pressure of benzene is 100.0 mmHg at 26.1°C. Calculate the vapor pressure of a solution containing 26.6 g of camphor (C10H16O) dissolved in 94.0 g of benzene. (Camphor is a low-volatility solid.)
Hey there!:
Molar mass benzene = 78.11 g/mol
find number of moles of benzene :
Moles of benzene = mass / molar mass of benzene
Moles of benzene = 94.0 / 78.11
Moles of benzene = 1.203 moles
Molar mass camphor = 152.23 g/mol
Moles of camphor = 26.6 / 152.23
Moles of camphor = 0.1747 moles
Therefore , vapor pressure of solution is :
mole fraction of benzene * vapor pressure of solution
= 1.203 / ( 1.203 + 0.1747 ) * 100.0
= ( 1.230 / 1.3777 ) * 100.0
= 0.8927 * 100.0
=> 89.27 mmHg
Hope this helps !
What is a person who writes about history known as? an archivist a historian a librarian a researcher
Aluminum reacts with sulfur to form aluminum sulfide according to the following reaction:
2 Al (s) + 3 S (s) → Al2S3 (s)
How many moles of sulfur will be need to produce 6 moles of aluminum sulfide?
a.
2 mol S
b.
3 mol S
c.
12 mol S
d.
15 mol S
e.
18 mol S
Aluminum reacts with sulfur to form aluminum sulfide according to the following reaction:
2 Al (s) + 3 S (s) → Al2S3 (s)
How many moles of sulfur will be need to produce 6 moles of aluminum sulfide?
a.
2 mol S
b.
3 mol S
c.
12 mol S
d.
15 mol S
e.
18 mol S
e.18 mol S. In the given chemical reaction, 3 moles of sulfur is needed to produce one mole of aluminum sulfide. Therefore, to produce 6 moles of aluminum sulfide, 18 moles of sulfur are needed.
Explanation:In the given chemical reaction, aluminum (Al) reacts with sulfur (S) to produce aluminum sulfide (Al2S3). The mole ratio of aluminum to sulfur to aluminum sulfide in this reaction is 2:3:1. This means that for every one mole of aluminum sulfide produced, three moles of sulfur are required.
So, calculating for six moles of aluminum sulfide, we multiply the required moles of sulfur for one mole of aluminum sulfide (which is three) by the six moles: 3 * 6 = 18. Hence, to produce 6 moles of aluminum sulfide, 18 moles of sulfur are needed.
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In the reaction 2 Al (s) + 3 S (s) → Al2S3 (s), three moles of sulfur are needed to produce one mole of aluminum sulfide. Therefore, to produce 6 moles of aluminum sulfide, you would need 18 moles of sulfur.
Explanation:In the given reaction, 2 Al (s) + 3 S (s) → Al2S3 (s), we see that three moles of sulfur (3 S) are needed to produce one mole of aluminum sulfide (Al2S3). So, to find out how many moles of sulfur are needed to produce 6 moles of aluminum sulfide, we can perform a simple multiplication: 3 sulfur moles/mole of aluminum sulfide * 6 moles of aluminum sulfide = 18 moles of sulfur. Hence, the correct answer is (e) 18 mol S.
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Which factor is most important to consider when evaluating a journal article about global warming?
A) Is the article long enough?
B) Does the article contain facts or only opinions?
C) Did the author of the article use complex, scientific words?
D) Does the author of the article have a doctorate degree?
Answer:
Does the article contain facts or only opinions? - B)
Answer:
The correct answer will be option-B.
Explanation:
Global warming is a hot topic of debate in the science world on how to resolve the environmental issues created by global warming. The scientific journals usually contain the articles related to the new research and scientific discoveries reviewed by the peer-review fellow scientists.
The journals ensure that the research articles to be published containing the experimental data which supports the hypothesis which should not be plagiarized. The article should be based on the reviewed facts and not personal small opinions. So to evaluate articles on global warming, one must ensure that the data should not be plagiarized.
Thus, Option-B is the correct answer.
A molecule of a covalent compound contains three atoms of fluorine (F) and one atom of boron (B).
What is the correct molecular formula and chemical name of the compound described in this statement?
F3B; trifluorine boronide
BF; boron fluoride
BF3; boron trifluoride
F3B; boron trifluorine
Answer:
BF₃; boron trifluoride
Explanation:
The molecular formula of the compound would be BF₃
The atoms making up the compound consists of B and F.
In covalent bonds, electrons are shared between atoms for the bonds to form. Boron has 3 valence electrons and would freely share with other atoms for it to have a stable configuration. Fluorine requires just one electron to have a stable configuration. Three fluorine atoms would make the bonding work.
This leaves us with a BF₃ compound
Chemical name is Boron trifluoride(3 atoms of fluorine)
What is the solubility of 618 grams of zinc chloride (ZnCl2) dissolved into 150 cm3 of water?
A. 242.72g/dm3
B. 41.2g/dm3
C. 0.24g/dm3
D. 4120g/dm3
Answer:
D. 4120 g/dm3
Explanation:
Given:
Mass of Zn = 618 g
Mass of water = 150 cm3
To determine:
Solubility of the given amount of Zn in water
Calculation:
Solubility is the amount of a substance that can be dissolved in a given volume.
Unit conversion:
1 cm3 = 0.001 dm3
Therefore, 150 cm3 of water is equivalent to:
[tex]\frac{150 cm3*0.001dm3}{1cm3}=0.15dm3[/tex]
[tex]Solubility = \frac{618g}{0.15dm3}=4120g/dm3[/tex]
The solubility of 618 grams of Zinc chloride (ZnCl2) dissolved into 150 cm³ of water is 4120g/dm³.
Further Explanation;Solubility Solubility refers to the ability of a substance called the solute to dissolve on another called the solvent.Solubility is measured as the maximum amount of solute that can dissolve in a solvent at a given temperature.It is therefore defined as the maximum amount of a solute that can dissolve in a 100g of water. It is measured in either in grams per 100 g of solvent (water) or number of moles per L of solution. To calculate the solubility in g/100g.We divide the mass of the compound(solute) by the mass of the solvent and then multiply by 100 g to calculate the solubility in g/100g Solubility = Mass of solute × 100 g/mass of solvent (water).We are given;
Mass of solute = 618 g of ZnCl2Mass of water = 150 cm³Therefore;Solubility of ZnCl2 = 618 g × 100 g/150 cm³ = 412 g/100 g of waterSolubility in g/dm³ we;
= 412 g ÷ 0.1 dm³
= 4120 g/dm³
Keywords: Solubility, solubility calculation, solubility in g/100g.
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Solubility: https://brainly.com/question/12289941Calculation of solubility: https://brainly.com/question/494904Factors affecting solubility: https://brainly.com/question/12414410Level: High school
Subject: Chemistry
Topic: Solubility
Sub-topic: solubility of substances in water
which is the odd one brass,copper, aluminum,iton , sapphire
Sapphire.
It is a stone not a metal.
How are weathering and erosion the same?
Answer:
Erosion involves movement to a new location, Weathering occurs in place, although they can occur together and both are caused by similar factors of wind, water, ice, temperature, and even biological action.
Which of the following elements is not contained in a carbohydrate?
Carbon
Hydrogen
Nitrogen
Oxygen
Option A. Nitrogen is not in a carbohydrate
carbo-(carbon)
Hydrate-water
Which of the following elements is not contained in a carbohydrate?Nitrogen is not contained carbohydrate, Nitrogen is in the soil under our feet, in the water we drink, and in the air we breathe. In fact, nitrogen is the most abundant element in Earth's atmosphere: approximately 78% of the atmosphere is nitrogen! Nitrogen is important to all living things, including us.
In addition to what we might think of as the classical elements: earth, water, fire, air, and gas (space), in many ancient eastern concepts of self there are an additional two: consciousness (or thought itself) and the element of spirit. Each of us is comprised of all seven elements
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What property do the following elements have in common?
Li, C, and F
Answer:
They all belong in the same period, thus they have the same energy levels which is 2.
In the periodic table, elements are categorized by group and period. Periods are arranged in rows. Below is a picture of the periodic table and where these elements are.
As you can see, they all belong in the same period (row). Elements in the same period have the same number of atomic orbitals, or in other words, they have the same electron energy level. The period number tells you the energy level. Lithium (Li), Carbon (C), and Fluorine (F) are in period 2, so they all have two energy levels.
At equilibrium, the rate of production of reactants is _____ the rate of production of products. the same as higher than lower than
Answer:
The correct answer option is: the same as.
Explanation:
At equilibrium, the rate of production of reactants is the same as the rate of production of products.
When at equilibrium, the forward rate of the production of products is exactly the same or say equal to the reverse production of the reactants. As they would not go forward and then stop because the reactions are dynamic.
Therefore, the correct answer option is the same as.
Answer:
At equilibrium, the rate of production of reactants is the same as the rate of production of products.
Explanation:
Chemical equilibrium is the state of a system where no changes are observed in the concentration of reagents or products, over time, that is, they remain constant.
The chemical equilibrium happens in reversible reactions, that is, reactions that can occur in both directions; that is, not only can reagents be converted into products, but the latter can be decomposed into the original substances.
In the chemical equilibrium, both speeds, that of the direct reaction and that of the reverse reaction, are equal. The products are formed at the same speed as they are consumed, so they do not experience variation in their concentration. If the external conditions of the system ( as pressure and temperature) remain unchanged, the concentrations of reagents and products will remain constant.
So, at equilibrium, the rate of production of reactants is the same as the rate of production of products.