Number 2,3,4
Homework 4 Recall the stoichiometric coefficients (the numbers before the individual species) ina balanced chemical reaction refer to the number of moles of that species involved in the chemical reaction. A balanced chemical equation shows the molar relationship between al of the reactants and products. Now, given the following chemical equation: (5 points) 1. 3cu + 8 HNO, 3Cu(NO)2 + 2 NO + 4 H2O â a. Is this equation balanced? (Yes/ No) b. How many moles of HNO, are required to react with 6 moles of Cu? c. How many moles of Cu(NO,), are produced when 3 moles of Cu react? d. How many moles of Cu must react to produce 4 moles of NO? e. If 4 moles of NO are produced, how many moles of H,O are also produced? paper, work problems 2-5. You must show your work for the problems. (5 points each) The overall equation for the metabolism of sucrose, C12H220,,, is GH22O" + 120, 12 co, + 11 HO -. a. How many moles of CO2 are produced when 1 g of sucrose is metabolized? b. How many grams of CO2 are produced when 1 g of sucrose is metabolized? Lithium hydroxide is used in the space program to remove carbon dioxide (from respiration in spacecraft. Specifically, lithium hydroxide, LiOH, reacts with carbon dioxide, CO2, to form lithium carbonate, Li,CO, and water. 2 LiOH + CO2 â Li2CO3 + H2O What mass of CO2 can be absorbed by 15 of LiOH? Urea, (NH2),CO, can be prepared by reacting ammonia, NH3, with carbon dioxide. 2 NH, + CO2 (NH2)2CO + H2O â If 12.24 g NH, are treated with 22.4 g of CO2 a. Identify the limiting reactant. b. What mass of urea can be produced?