Chapter 4 (Stoichiometry: Quantitative Information about Chemical Reactions) Questions And Answers With Latest Updates

The study of mass relationships in chemical reactions is called ₋₋₋₋₋₋₋ ? - Answer-stoichiometry Stoichiometry provides quantitative information about ₋₋₋₋₋ ? - Answer-chemical reactions ₋₋₋₋₋ must be conserved in a chemical reaction - Answer-mass Chemical Equations must be balanced for ₋₋₋₋₋₋ ? - Answer-mass The stoichiometric balancing ₋₋₋₋₋₋ are the numbers in front of the chemical formulas - Answercoefficients Stoichiometric balancing coefficients give the ₋₋₋₋₋ of reactants and products - Answer-ratio The branch of chemistry that deals with the mole proportions of chemical reactions - Answerstoichiometry The ratio of any two species (reactants or products) in a balanced chemical reaction. - Answerstoichiometric ratio It is not possible to relate masses in reactions without going through ₋₋₋₋₋ ? - Answer-moles It is not possible to relate ₋₋₋₋ in reactions without going through moles - Answer-mass In order to solve stoichiometry problems, one must go through moles using molar masses and mole ratios as conversion factors. One cannot do this without writing a ₋₋₋₋₋₋ first - Answer-balanced equationIn order to solve ₋₋₋₋₋₋ problems, one must go through moles using molar masses and mole ratios as conversion factors. One cannot do this without writing a balanced chemical equation first - Answerstoichiometry The reactant that is in short supply ₋₋₋₋₋₋ the quantity of product that can be formed. - Answer-limits The ₋₋₋₋₋₋₋ of products is limited by the "Limiting Reactant" - Answer-theoretical yield The maximum product yield that can be expected based on the masses of the reactants and the reaction stoichiometry - Answer-theoretical yield The experimentally measured amount of products that results upon completion of the reaction - Answer-actual yield A measure of the extent of the reaction in terms of the actual vs. the theoretical yield - Answerpercentage yield ₋₋₋₋₋₋₋ involves the addition of oxygen to another element - Answer-combustion When ₋₋₋₋₋₋ molecules burn completely, the products are always carbon dioxide gas and water - Answerhydrocarbon A compound that contains predominately carbon and hydrogen and possibly smaller amount of elements such as O, N and S. - Answer-hydrocarbon All of the hydrogen in the sample ends up in ₋₋₋₋₋ ? - Answer-water Most chemical studies require ₋₋₋₋₋₋ measurements - Answer-quantitative Experiments involving aqueous solutions are measured in ₋₋₋₋₋ of solutions rather than masses of solids, liquids, or gases - Answer-volumesSolution concentration, expressed as ₋₋₋₋₋₋ , relates the volume of solution in liters to the amount of substance in moles - Answer-molarity Solution ₋₋₋₋₋₋₋₋ , expressed as molarity, relates the volume of solution in liters to the amount of substance in moles - Answer-concentration Solute + Solvent = ₋₋₋₋₋₋ ? - Answer-solution That which is dissolved (lesser amount) - Answer-solute That which is dissolves (greater amount) - Answer-solvent