Chemistry I 9.1 – Calculating Quantities in Reactions Objectives and ...

D. Mole-Mole Calculationsa. Given the # of moles of reactant(s), calculate the number of moles ofproduct(s):Ex.: N 2(g) + 3H 2(g) ® 2NH 3(g)i. How many moles of ammonia are produced when 3.2 mol of hydrogenreact with nitrogen?b. Given the # of moles of product(s), find the number of moles of reactants(s):Ex.: N 2(g) + 3H 2(g) ® 2NH 3(g)i. How many moles of nitrogen are needed to make 7.24 moles of NH 3 ?E. Mass-Mass Calculationsa. Given the of a reactant or product, calculate the mass of any other reactant orproduct in the equationi. Use dimensional analysis and go “through” moles. (Go from _______ to_______ to __________.)ii. You‛ll need ____________________!Ex.: N 2(g) + 3H 2(g) ® 2NH 3(g)iii. Calculate the number of grams of NH 3 produced by the reaction of 2.8 gof hydrogen with an excess of nitrogen.