The quantity of antimony in a sample can be determined by an oxidation–reduction titration with an oxidizing agent.
A 5.85 g sample of stibnite, an ore of antimony, is dissolved in hot, concentrated HCl(aq) and passed over a reducing agent so that all the antimony is in the form Sb3+(aq). The Sb3+(aq) is completely oxidized by 26.6 mL of a 0.125 M aqueous solution of KBrO3(aq). The unbalanced equation for the reaction is:
BrO3-(aq) + Sb3+(aq) ------> Br-(aq) + Sb5+(aq) (unbalanced)
(A) Calculate the amount of antimony in the sample and its percentage in the ore.
Answers
Answer:
The percentage is k \(= 20.8\)%
Explanation:
From the question we are told that
The mass of the stibnite is \(m_s = 5.86 \ g\)
The volume of KBrO3(aq) is \(V = 26.6 mL = 26.6 *10^{-3} \ L\)
The concentration of KBrO3(aq) is \(C = 0.125 M\)
Now the balanced ionic equation for this reaction is
\(BrO_3 ^{-}+ 3Sb^{3+} + 6H^{+} \to Br^{1-} + 3Sb^{5+} + 3H_2O\)
The number of moles of \(BrO_3 ^{-}\) is
\(n = C *V\)
substituting values
\(n = 26.6*10^{-3} * 0.125\)
\(n = 0.003325 \ mols\)
from the reaction we see that 1 mole of \(BrO_3 ^{-}\) reacts with 3 moles of \(Sb^{3+}\)
so 0.003325 moles will react with x moles of \(Sb^{3+}\)
Therefore
\(x = \frac{0.003325 * 3}{1}\)
\(x = 0.009975 \ mols\)
Now the molar mass of \(Sb^{3+}\) is a constant with a values of \(Z = 121.76 \ g/mol\)
Generally the mass of \(Sb^{3+}\) is mathematically represented as
\(m = x * Z\)
substituting values
\(m = 1.215 \ g\)
The percentage of Sb(antimony) in the overall mass of the stibnite is mathematically evaluated as
k \(= \frac{1.215}{5.85 } * 100\)
k \(= 20.8\)%
Answer:
Explanation:
Step 1: Data given
Mass of stibnite (Sb2S3) = 5.85 grams
The Sb3+(aq) is completely oxidized by 26.6 mL of a 0.125 M aqueous solution of KBrO3(aq).
Step 2: The balanced equation
BrO3-(aq)+ 3Sb^3+(aq) + 6 H+ → Br-(aq) + 3Sb^5+(aq) + 3H2O (l)
Step 3: Calculate moles KBrO3
Moles KBrO3 = molarity * volume
Moles KBrO3 = 0.125 M *0.0266 L
Moles KBrO3 = 0.003325 moles
Step 4: Calculate moles Bro3-
in 1 mol KBrO3 we have 1 mol K+ and 1 mol BrO3-
In 0.003325 moles KBrO3 we have 0.003325 moles BrO3-
Step 5: Calculate moles Sb
For 1 mol BrO3- we need 3 mol Sb^3+ to produce 1 mol Br- and 3 mol Sb^5+
For 0.029085 moles BrO3- we need 3*0.003325 = 0.009975 moles Sb
Step 6: Calculate mass Sb
Mass Sb = moles Sb * molar mass Sb
Mass Sb = 0.009975 moles * 121.76 g/mol
Mass Sb = 1.21 grams
Step 7: Calculate the percentage of Sb in the ore
% Sb = (mass Sb / total mass) * 100%
% Sb = (1.21 grams / 5.85 grams) * 100 %
% Sb = 20.76 %
20.76 % of the ore is antimonyRelated Questions
What characterizes a crystalline solid when it breaks?
A. The solid stretches rather than breaks.
B. The break follows the crystal structure.
C. The solid shatters into jagged pieces.
D. The break occurs in random places.
Answers
Answer:
The breaks follows the crystal structure
Explanation:
In crystalline solids, the atoms, ions or molecules are arranged in an ordered and symmetrical pattern that is repeated over the entire crystal. … This means that a crystalline solid will have a distinct melting point, because applying heat will break all the bonds at the same time
According to the forces of attraction, the break follows the crystal structure characterizes a crystalline solid when it breaks.
What are forces of attraction?Forces of attraction is a force by which atoms in a molecule combine. it is basically an attractive force in nature. It can act between an ion and an atom as well.It varies for different states of matter that is solids, liquids and gases.
The forces of attraction are maximum in solids as the molecules present in solid are tightly held while it is minimum in gases as the molecules are far apart . The forces of attraction in liquids is intermediate of solids and gases.
The physical properties such as melting point, boiling point, density are all dependent on forces of attraction which exists in the substances.
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nitial mass of water, at its boiling point, is 0.8 kg. 4 kW of heater is used to boil it completely. Assuming the specific latent heat of vaporization of water is 2MJ/kg, what is the time taken to vaporize all the water
Answers
The time taken to vaporize all the water is 400 seconds.
Total heat required to vaporize the water
The total heat required to vaporize the water is calculated as follows;
E = Lm
where;
L is latent heat of vaporization of waterm is mass of waterE = 2 x 10⁶ J/kg x 0.8 kg
E = 1,600,000 J
Time taken to vaporize all the waterThe time taken to vaporize all the water is calculated as follows;
E = power x time
time = E/power
time = ( 1,600,000 J) / (4,000 J/s)
time = 400 seconds
Thus, the time taken to vaporize all the water is 400 seconds.
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Label the diagram include the names the amount and the concentration of the Chemical
Answers
By controlling the frequency of molecular collisions in solution, it indirectly controls reaction rates and equilibrium conditions.
How can concentration be demonstrated?The concentration would be one teaspoon of salt per two cups of water if you added one teaspoon to each cup. The solution contains 5% by weight acetic acid, according to the vinegar label. As a result, each 100 g of solutions contains 5 grams of citric acid.
A measure of how much a substance, like salt, is present in a certain volume of a liquid or tissue. Reduced water content causes a substance to become more concentrated.
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the products formed from the reaction of halogenoalkane + ethanolic aqueous silver nitrate
Answers
Answer:
Silver nitrate solution can be used to find out which halogen is present in a suspected halogenoalkane. The most effective way is to do a substitution reaction which turns the halogen into a halide ion, and then to test for that ion with silver nitrate solution
2H2O->2H2+O2
Finish the following model to represent the reaction equation for the electrolysis of water
Answers
The model would be complete when there two pairs of white dots and one pair of black dots
Electrolysis of waterThe chemical process of electrolysis breaks down water molecules into their component parts, hydrogen and oxygen , using an electric current. Two simultaneous reactions take place at distinct electrodes, referred to as the anode and cathode, which are submerged in an electrolyte solution, to produce this process.
A crucial step in the process of creating hydrogen gas, a clean and renewable energy source, is the electrolysis of water.
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When zinc reacts with copper sulfate solution, zinc sulfate solution and copper are formed.(i) An experiment was carried out to measure the temperature change when zinc powder reactswith copper sulfate solution.initial temperature of copper sulfate solution = 20 °Cfinal temperature of mixture after the reaction = 46 °CExplain what the temperature readings show about the type of heat change that occurs duringthis reaction.
Answers
The temperature increase from 20 °C to 46 °C indicates that the reaction between zinc and copper sulfate solution is exothermic, with heat being released into the surroundings.
In the given reaction between zinc and copper sulfate solution, the temperature change can provide insights into the type of heat change occurring during the reaction. Based on the provided information, the initial temperature of the copper sulfate solution was 20 °C, and the final temperature of the mixture after the reaction was 46 °C.
The temperature increase observed in this reaction indicates an exothermic heat change. An exothermic reaction releases heat energy into the surroundings, resulting in a temperature rise. In this case, the reaction between zinc and copper sulfate solution is exothermic because the final temperature is higher than the initial temperature.
During the reaction, zinc displaces copper from copper sulfate to form zinc sulfate and copper metal. This displacement reaction is known as a single displacement or redox reaction. Zinc is more reactive than copper and therefore replaces copper in the compound.
The formation of new chemical bonds during the reaction releases energy in the form of heat. This energy is transferred to the surroundings, leading to an increase in temperature. The heat released is greater than the heat absorbed, resulting in a net increase in temperature.
The exothermic nature of this reaction can be explained by the difference in bond energies between the reactants and products. The breaking of bonds in the reactants requires energy input, while the formation of new bonds in the products releases energy.
In this case, the energy released during the formation of zinc sulfate and copper metal is greater than the energy required to break the bonds in copper sulfate and zinc.
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The spoon's broken appearance is caused by light waves that are
A
Reflected by the glass and then absorbed the water
B
Refracted by the water
С
Absorbed by the metal spoon
D
Reflected by the metal spoon and the water
Answers
Answer:
its b
Explanation:
subject: science
what is radiation?
Answers
Answer:
Definition: - Radiation is the emission or transmission of energy in the form of waves or particles through space or through a material medium.
Example: A burning candle emits radiation in the form of heat and light.
a metal worker used a cutting torch that operated by reacting acetylene gas with oxygen gas, as shown in the unbalanced equation below. balance the following equation for the reaction of acetylene and oxygen, using the smallest whole-number coefficients. (the values are 1,2,3,4,5)
Answers
The balanced equation for the reaction of acetylene (C₂H₂) and oxygen (O₂) is; 2 C₂H₂(g) + 5 O₂(g) → 4 CO₂(g) + 2 H₂O(g) + heat
The coefficients in the balanced equation represent the stoichiometric ratio of the reactants and products in the chemical reaction. In this case, 2 molecules of acetylene (C₂H₂) react with 5 molecules of oxygen (O₂) to produce 4 molecules of carbon dioxide (CO₂) and 2 molecules of water (H₂O), along with the release of heat.
The balanced equation shows that the number of atoms of each element is the same on both the sides of the equation, in accordance with the law of conservation of mass.
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Please help me with this question please just help me with what is this is or synthesis singlereplacement
combustion
decomposition
double replacement
Answers
Answer:
1) Combustion
2)Synthesis
3)Single Replacement
4)Decomposition
5)Double Replacement
6)Synthesis
7)Double Replacement
8)Single Replacement
9)Combustion
10)Decomposition
Explanation:
Remeber, decomposisition is breaking things apart, synthesis is building them, cobusion will always make water and CO2 and will always burn O2, single replacemnt will have 1 thing replaced (single) and double replacement will have 2 things replaced (double).
Hope this helps!
98.96g/mol of CH2O what will be the chemical formula
Answers
Let's break down the molar mass of CH2O:
- Carbon (C) has a molar mass of approximately 12.01 g/mol.
- Hydrogen (H) has a molar mass of approximately 1.01 g/mol.
- Oxygen (O) has a molar mass of approximately 16.00 g/mol.
Now, let's calculate the molar mass of CH2O:
(1 x molar mass of C) + (2 x molar mass of H) + (1 x molar mass of O)
= (1 x 12.01 g/mol) + (2 x 1.01 g/mol) + (1 x 16.00 g/mol)
= 12.01 g/mol + 2.02 g/mol + 16.00 g/mol
= 30.03 g/mol
The molar mass of CH2O is approximately 30.03 g/mol, which is different from the given molar mass of 98.96 g/mol.
It seems that there might be an error or misunderstanding in the given molar mass value. The correct chemical formula for a compound with a molar mass of 98.96 g/mol cannot be determined based on the information provided.
is there a relationship between the shape and polarity of the molecule
Answers
Answer:hi
Explanation:
Yes
Explanation:
Polarity of molecules with more than one bond is determined from both the polarity of the individual bonds and the shape and the shape of the molecule.
I need help with question May someone help me? Thank yo
Answers
The question requires us to choose the best option regarding the bonds of nonmetal atoms.
Nonmetal atoms can form different types of bonds depending on the atom they are bonding to. They can participate in ionic bonds, where electrons are donated or received (exchanged electrons), usually when bonded to a metal (in this case, the metal usually "loses" the electron, while the nonmetal "gains" the electrons). They can also form covalent bonds when the electrons are shared with other nonmetals.
Regarding the options provided by the question, we can make the following comments:
- 1st option: the type of bond described, where electrons can move freely, is typical of metallic bonding;
- 2nd option: gaining electrons describe ionic bonding, while sharing electrons is related to covalent bonding;
- 3rd option: noble gases are the atoms with full valence orbitals.
- 4th option: losing valence electrons is also a description of ionic bonding.
Considering the information above, the best option to answer the question is the second one:
"Nonmetal atoms form bonds by gaining or sharing electrons".
(nonmetals participate in ionic bonds by donating electrons and in covalent bonds by sharing electrons).
What is the percent of S in
CuSO4?
(Cu = 63.55 g/mol, S = 32.07 g/mol,
O = 16.00 g/mol)
[?]% S
Answers
The percentage of the sulfur (S) in the compound CuSO₄ is 20.1 %.
What is the mass percentage?The percentage of an element in a compound can be determined as the number of parts by mass of that element present in 100 parts by mass of the given compound.
First, calculate the molecular mass of the given compound by the addition of the atomic masses of all the present elements in the molecular formula. Then, the percentage of the elements can be determined by dividing the total mass of the element by the molar mass of the compound multiplied by 100.
Given, the atomic mass of copper, sulfur, and oxygen is 63.55 g, 32.07 g, and 16.0g respectively.
The molecular mass of CuSO₄ = 63.55 + 32.07 + 4(16.0) = 159.62 g
The mass percentage of the sulphur = (32.07/159.62) × 100 = 20.1 %
Therefore, the mass percentage of the sulfur is equal to 20.1 %.
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there is concern in health-related government agencies that the american diet contains too much meat, and numerous recommendations have been made urging people to consume more fruit and vegetables. one of the richest sources of vegetable protein is soy, available in many forms. among these is soybean curd, or tofu, which is a staple of many asian diets. chemists have isolated an anticancer agent called genistein from tofu, which may explain the much lower incidence of cancer among people in the far east. a valid lewis structure for genistein is
Answers
Answer:
Explanation:
The aim of this question is to draw the structure of genistein and determine the number of atoms with sp² hybridization in the molecule.
From the image below, we will see the lewis structure of genistein. From the image, the blue asterisk atoms are sp² hybridized and the red marked atoms are sp³ hybridized.
We will also notice that all the carbon atoms contain 3 σ-bonds with no lone pair of electrons.
Using the knowledge of Valence shell electron repulsion theory (VSEPR), the above-mentioned carbon atom is said to be sp²hybridized.
Also, the oxygen atoms which are doubly bounded contains 1 σ-bond and 2 lone pair electrons. These oxygen atoms are also sp² hybridized.
Finally, the singly bonded oxygen atom is composed of 2 σ-bonds and 2 lone pair electrons. This makes it to be sp³ hybridized.
Altogether, we have a total of 16 sp² hybridized atoms and 4 sp³ hybridized atoms.
the two molecules below are isomers. a pure sample of which liquid would have the highest boiling point.
Answers
O-dichlorobenzene is the isomer of dichlorobenzene which has highest boiling point.
The boiling point of o-dichlorobenzene is greater than the boiling point of m -and p-dichlorobenzenes due to its greater polar nature. The boiling point order is: o−>m−>p− dichlorobenzene.
What is boiling point?
Boiling point, the temperature at which the pressure exerted by the surroundings on a liquid equals the pressure exerted by the vapor of the liquid; under these conditions, the addition of heat has the effect of converting the liquid into its vapor without raising the temperature.At any temperature, the liquid partially evaporates into the space above it until the pressure exerted by the vapor reaches a characteristic value called the vapor pressure of the liquid at that temperature.As the temperature increases, the vapor pressure increases; at the boiling point, vapor bubbles form in the liquid.To know more about boiling point, click the link given below:
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If 175 g of phosphoric acid reacts with 150.0 g of sodium hydroxide, what is the limiting reactant? How many grams of sodium phosphate will produced? How many grams of excess reactant will be left over?
Answers
Answer:
NaOH is the limiting reactant.
204.9 g of sodium phosphate are formed.
51.94 g of excess reactant will remain.
Explanation:
The reaction that takes place is:
H₃PO₄ + 3NaOH → Na₃PO₄ + 3H₂OFirst we convert the mass of both reactants to moles, using their respective molar masses:
H₃PO₄ ⇒ 175 g ÷ 98 g/mol = 1.78 molNaOH ⇒ 150 g ÷ 40 g/mol = 3.75 mol1.78 moles of H₃PO₄ would react completely with (1.78 * 3) 5.34 moles of NaOH. There are not as many NaOH moles so NaOH is the limiting reactant.
--
We calculate the produced moles of Na₃PO₄ using the limiting reactant:
3.75 mol NaOH * \(\frac{1molNa_3PO_4}{3molNaOH}\) = 1.25 mol Na₃PO₄Then we convert moles into grams:
1.25 mol Na₃PO₄ * 163.94 g/mol = 204.9 g--
We calculate how many H₃PO₄ moles would react with 3.75 NaOH moles:
3.75 mol NaOH * \(\frac{1molH_3PO_4}{3molNaOH}\) = 1.25 mol H₃PO₄We substract that amount from the original amount:
1.78 - 1.25 = 0.53 mol H₃PO₄Finally we convert those remaining moles to grams:
0.53 mol H₃PO₄ * 98 g/mol = 51.94 gGIVEING BRAINLIST
ATP is a(1 point)
storable form of energy.
usable form of energy.
form of energy that can be used and stored.
form of energy that can be stored and released as heat.
Answers
Answer:
ATP is a stored form of energy
Explanation:
it is the main source of this
The irreversible isomerization A
B was carried out in a batch reactor and the following concentration time data were obtained:
Time vs Concentration data in a Batch reactor
t 0 3 5 8 10 12 15 7.5
mol/h 4 2.89 2.25 1.45 1.0 0.65 0.25 0.07
Determine the reaction order,
, and the specific reaction a rate constant, k, using any method of your choice.
Answers
The reaction order and specific reaction rate constant can be determined by performing the kinetics experiment on irreversible polymerization A. Kinetic experiments can be used to investigate the rate and mechanism of chemical reactions. Chemical kinetics is the study of chemical reactions' speed and pathway.
The term "kinetics" refers to the study of reaction rates, which are determined by measuring the concentration of reactants and products as a function of time.Kinetics experiments can be used to determine the reaction rate and order of reaction. A chemical reaction's rate is defined as the change in the concentration of a reactant or product per unit time. The order of a reaction refers to the number of molecules that must react to produce a product. The order of reaction can be determined by measuring the initial rate of the reaction as a function of concentration.Methods for determining the reaction rate order include the initial rate method, the half-life method, and the integrated rate method. The initial rate method determines the reaction order by measuring the initial rate of the reaction at different reactant concentrations. The half-life method determines the reaction order by measuring the time it takes for the reactant concentration to decrease by half.The integrated rate method determines the reaction order by measuring the concentration of the reactant or product at different times.The specific rate constant can be determined by using the Arrhenius equation, which relates the rate constant to the activation energy, temperature, and frequency factor. The frequency factor can be determined by measuring the rate constant at different temperatures.For such more question on polymerization
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which statement correctly identifies how a lipid-soluble hormone that diffuses from the blood and through the interstitial fluid identifies which cells in the tissue to act upon
Answers
Answer:
Explanation:
the presence of a receptor located in the cytoplasm or nucleus specific to the hormone in cells
The statement correctly identify a lipid-soluble hormone that diffuses from the blood and through the interstitial fluid, the cells in the tissue to act upon are steroids are hormones that dissolve in fat and diffuse through the cell membrane into the cell.
Diffusion is the movement of substances with or without crossing the cell membrane from an area of high concentration to an area of low concentration. Diffusion is a type of passive transport because it does not require energy that occurs due to differences in concentration.
Endocrine glands consist of secretory cells that secrete hormones into the interstitial space which are then absorbed into the surrounding blood vessels. Steroids and thyroid hormones are hormones that are soluble in lipid. The hormone will diffuse from the blood through the interstitial fluid through the lipid bilayer of the cell membrane into the cell. The hormone will bind to receptors in the cytoplasm or nucleus to form an active hormone-receptor complex. Thus affecting the DNA (gene acceptor), stimulate or synthesis of specific proteins or enzymes.
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Which of the following is a homogeneous mixture ?A.pizza B.oxygen
C.tea
D .pure water
Answers
I think it would be d bc water is everywhere
A careless student forgets to label one of their reagent containers. They know it contains one of the following solutions: 0.1 M NaCl 0.1 M Ca(NO3)2 0.1 M KCH3COO The student decides to add some 0.1 M Pb(NO3)2 to a sample of the reagent in question. Upon stirring, a white precipitate formed. Which of the possible solutions is present in the unlabeled container based on this observation?
A. 0.1 M KCH3COO
B. 0.1 M Ca(NO3)2
C. 0.1 M NaCl
Answers
Answer:
0.1 M NaCl
Explanation:
This question reminds of of the solubility rules. Let us recall that all chlorides are soluble except those of lead, mercury II and silver which are insoluble in water.
The following reaction will occur leading to the formation of a precipitate;
Pb(NO3)2(aq) + 2NaCl(aq) -------> 2NaNO3(aq) + PbCl2(s)
The white precipitate formed is PbCl2.
Why are humans not capable of breathing underwater?
Answers
• Respiratory physiology informs us that humans depend on the supply of oxygen in order to maintain energy and oxidation in the body.
• When the supply of oxygen is reduced, it leads to a reduced oxidation process in our bodies , inside water there is little supply of oxygen.
This will result in reduced normal activity of a person and could ultimately lead to death. the lack of oxygen supply could lead to comma and death.
The following series of reactions were carried out.
PbCO3(s) + 2HNO3(aq) → Pb(NO3)2(aq) + H₂O(1) + CO₂(g)
Pb(NO3)2(aq) + 2HBr(aq) → 2HNO3(aq) + PbBr2(s)
(a) If a student starts with 2.457 g of lead(II) carbonate for the first reaction and all
other reagents are added in excess, what is the theoretical yield of lead(II) bromide
solid?
Answers
First, let's calculate the molar mass of PbCO3:
PbCO3: Pb (207.2 g/mol) + C (12.0 g/mol) + 3O (16.0 g/mol) = 267.2 g/mol
Next, we can calculate the number of moles of PbCO3:
moles = mass / molar mass = 2.457 g / 267.2 g/mol ≈ 0.00919 mol
From the balanced equation, we can see that the mole ratio between PbCO3 and PbBr2 is 1:1. Therefore, the moles of PbBr2 formed will be the same as the moles of PbCO3 used.
The molar mass of PbBr2 is:
PbBr2: Pb (207.2 g/mol) + 2Br (2 × 79.9 g/mol) = 366.0 g/mol
Now, we can calculate the theoretical yield of PbBr2:
theoretical yield = moles of PbBr2 × molar mass of PbBr2
= 0.00919 mol × 366.0 g/mol
≈ 3.36 g
Therefore, the theoretical yield of lead(II) bromide (PbBr2) solid is approximately 3.36 grams.
A 2.7 L volume of chlorine gas has a pressure of 0.70 atm. If the pressure is changed to 1.1 atm at the same temperature, what is the new volume
Answers
Answer:
1.72L
Explanation:
Using Boyle's law equation which is as follows:
P1V1 = P2V2
Where;
P1 = initial pressure
V1 = initial volume
P2 = final pressure
V2 = final volume
According to the information provided in this question, P1 = 0.70atm, V1 = 2.7L, P2 = 1.1atm, V2 = ?
Hence, using P1V1 = P2V2
0.70 × 2.7 = 1.1 × V2
1.89 = 1.1V2
V2 = 1.89/1.1
V2 = 1.718
The new volume is 1.72L
The Ka of a monoprotic weak acid is 0.00469. What is the percent ionization of a 0.141 M solution of this acid?
Use quadratic equation.
Answers
The percent ionization of an acidic solution can be calculated from the H+ concentration. the percent ionization of the monoprotic acid of 0.141 M is 18.23 %.
What is percent ionization?Percent ionization of an acidic solution is the percent of H+ ions in the solution. Thus, mathematically, it is the ratio of H+ ion concentration to the concentration of solution multiplied by 100.
Let HA be the monoprotic acid when it ionizes, forming equal concentration of H+ and A- let it be x. Thus ionization constant can be written as follows:
Ka = [x]² /[HA]
0.00469 =[x]²/[0.141 M]
[X] = 0.025. = [H+]
Percentage ionization = (0.025 M / 0.141 M)× 100
= 18.23 %
Therefore percentage ionization of the acid is 18.23%.
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Which description of groundwater is correct?
Groundwater cannot be replenished and is, therefore, a limited resource.
Groundwater cannot be replenished, but its supply is practically infinite.
Groundwater can be replenished by rainfall.
Groundwater can be replenished through reactions in Earth’s core.
Answers
I'll give you the brainiest please help.
Answers
Answer:
c
Explanation:
Please write a essay and pick one prompt and at least half a page long thank you!
1. What are the physical and chemical properties of metals? Describe the carrot sticks of each and what each means.
2. Explain the difference between chemical and physical changes. Give to real-world examples of each.
Answers
what mass of co2 can be removed from the atmosphere by 454 g of lioh ?balanced formula :2LiOH ( s ) + CO2 ( g ) = Li2CO3 ( s ) + H2O ( l )
Answers
Answer:
Approximately, 416 g of CO2 will be removed
Explanation:
Here, we want to get the mass of LiOH that can be removed
We start by getting the number of moles of LiOH that wants to do the removal
We can get this by dividing the mass by the molar mass of LiOH
The molar mass of LiOH is 24 g/mol
Thus, we have the number of moles performing the removal as:
\(\frac{454}{24}\text{ = 18.92 mol}\)Looking at the balanced equation, 2 moles of LiOH will remove 1 mole of Carbon iv oxide
What this means is that
18.92 moles LiOH will remove 18.92/2 = 9.46 moles
To get the actual mass removed, we multiply this number of moles by the molar mass of CO2
The molar mass of CO2 is 44g/mol
Thus, we have it that the mass removed will be:
\(44\text{ }\times\text{ 9.46 = 416.24 g}\)Approximately, 416 g of CO2 will be removed