Concept explainers
Interpretation:
The ratio that is same as the coefficients present in a balanced chemical equation is to be predicted.
Concept introduction:
The stoichiometry of a chemical species involved in a
Answer to Problem 1CE
The ratio of coefficients of the stoichiometry present in the reaction is equals to the moles of gas and the volume of gas but is not equal to the mass of gas
Explanation of Solution
Consider a reaction between A and B to form C.
In the above reaction,
The formula to determine molarity is shown below.
Where
•
•
•
Rearrange the above equation as shown below.
The above relation shows that the volume of gas is directly proportional to the number of moles of a gas. Therefore, the number of moles of a gas in the equation (1) is same for A, B and C. This means the ratio of the coefficients of the stoichiometry present in the reaction is equals to the volume of gas.
The formula to determine the number of moles is shown below.
Rearrange the above equation as shown below.
The above relation shows that the mass of a substance is dependent on the molar mass of a substance. The molar mass of every substance is different. Therefore, the ratio of coefficients of the stoichiometry present in the reaction is not equal to the mass of gas.
The ratio of coefficients of the stoichiometry present in the reaction is equals to the moles of gas and the volume of gas.
Want to see more full solutions like this?
Chapter 9 Solutions
Introductory Chemistry: Concepts and Critical Thinking (8th Edition)
- The simplest example of the hydrogenation of a carbon-carbon double bond is the reaction between ethene and hydrogen in the presence of nickel: CH2=CH2+H2NiCH3CH3. When 5.20g of ethene react with excess hydrogen gas, the reaction yields 4.75g of ethane. What is the percentage yield for this reaction?arrow_forwardAlkali metal hydroxides are sometimes used to “scrub” excess carbon dioxide from the air in closed spaces (such as submarines and spacecraft). For example, lithium hydroxide reacts with carbon dioxide according to the unbalanced chemical equation :math>LiOH(s)+CO2(g)Li2CO3(s)+H2O(g) ppose a lithium hydroxide canister contains 155 g of LiOH(s). What mass of CO2(g)will the canister be able to absorb? If it is found that after 24 hours of use the canister has absorbed 102 g of carbon dioxide, what percentage of its capacity has been reached?arrow_forwardCalcium cyanamide is a common fertilizer. When mixed with water in the soil, it reacts to produce calcium carbonate and ammonia: CaCN2+3H2OCaCO3+2NH3. How much ammonia can be obtained from 7.25g of calcium cyanamide in a laboratory experiment in which the percentage yield will be 92.8?arrow_forward
- A single-replacement reaction occurs between copper and silver nitrate. When 63.5 g of copper reacts with 339.8 g of silver nitrate, 215.8 g of silver is produced. Write a balanced chemical equation for this reaction. What other product formed? What is the mass of the second product?arrow_forwardSmall quantities of ammonia gas can be generated in the laboratory by heating an ammonium salt with a strong base. For example, ammonium chloride reacts with sodium hydroxide according to the following balanced equation: :math>NH4Cl(s)+NaOH(s)NH3(g)+NaCl(s)+N2O(g) at mass of ammonia gas is produced if 1.39 g of ammonium chloride reacts completely?arrow_forwardThe quantitative significance of take a deep breath varies, of course, with the individual. When one person did so, he found that he inhaled 2.951022 molecules of the mixture of mostly nitrogen and oxygen, which we call air. Assuming this mixture has an average molar mass of 29g/mol, what is his apparent lung capacity in grams of air?arrow_forward
- The notation “(l)” after a substance’s formula indicates it exists in the __________ state.arrow_forwardCalculate the mass in grams of 100.0mL of chloroform (d=1.49g/mL).arrow_forwardWhen aluminum is mixed with iron(lll) oxide, iron metal and aluminum oxide are produced, along with a large quantity of heat. What mole ratio would you use to determine moles of Fe if moles of Fe2O3 is known? Fe2O3(s)+2A1(s)2Fe(s)+A12O3(s)+heatarrow_forward
- Introductory Chemistry: An Active Learning Approa...ChemistryISBN:9781305079250Author:Mark S. Cracolice, Ed PetersPublisher:Cengage LearningChemistry for Today: General, Organic, and Bioche...ChemistryISBN:9781305960060Author:Spencer L. Seager, Michael R. Slabaugh, Maren S. HansenPublisher:Cengage Learning
- Chemistry: Matter and ChangeChemistryISBN:9780078746376Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl WistromPublisher:Glencoe/McGraw-Hill School Pub CoWorld of Chemistry, 3rd editionChemistryISBN:9781133109655Author:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCostePublisher:Brooks / Cole / Cengage LearningWorld of ChemistryChemistryISBN:9780618562763Author:Steven S. ZumdahlPublisher:Houghton Mifflin College Div