9. (a) Calculate the mass of hydrogen gas that can be prepared from 5.00 g CaH2 and 4.80 g H2O. FINALANSWER : (0.480 g)CaH2(9) + H2O0) → Ca(OH)2(s) + H2 (g)(b) Which reactant is in excess, and how many grams of it remain after the reaction? FINAL ANSWER : (0.518 g)*PLEASE SHOW ALL STEPS FOR FULL POINTS!10. How many grams of solid aluminum sulfide can be prepared by the reaction of 10.0 g aluminum and 15.0 gsulfur? How much of the nonlimiting reactant is in excess? FINAL ANSWER : (23.4 g, 1.58 g)*PLEASE SHOW ALL STEPS FOR FULL POINTS!11. Silicon carbide (SiC), an important ceramic material, is manufactured by allowing sand (silicon dioxide) toreact with powdered carbon at high temperature. Carbon monoxide is also formed. When 100.0 kg sand areprocessed, 51.4 kg SiC are recovered. What is the percentage yield of SiC? FINAL ANSWER : (77.0 %)*PLEASE SHOW ALL STEPS FOR FULL POINTS!12. When 10.0 g of marble (calcium carbonate) reacts with excess hydrochloric acid, carbon dioxide gas formswith a percentage yield of 83.0 %. What is the mass of carbon dioxide that is formed? The other products of thisreaction are calcium chloride solution and water. FINAL ANSWER : (3.65 g)*PLEASE SHOW ALL STEPS FOR FULL POINTS!

In the given question we have to calculate the mass of hydrogen and grams of excess reactant left…

9. (a) Calculate the mass of hydrogen gas that can be prepared from 5.00 g ÇaH2 and 4.80 g H2O. FINAL ANSWER : (0.480 g) CaH2(6) + H2O@→ Ca(OH)2(s)+ H2 (g) (b) Which reactant is in excess, and how many grams of it remain after the reaction? FINAL ANSWER : (0.518 g) *PLEASE SHOW ALL STEPS FOR FULL POINTS!

9. (a) Calculate the mass of hydrogen gas that can be prepared from 5.00 g ÇaH2 and 4.80 g H2O. FINAL ANSWER : (0.480 g) CaH2(6) + H2O@→ Ca(OH)2(s)+ H2 (g) (b) Which reactant is in excess, and how many grams of it remain after the reaction? FINAL ANSWER : (0.518 g) *PLEASE SHOW ALL STEPS FOR FULL POINTS!

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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