Determine the percent yield of a reaction that produces 28.65 g of Fe when 50.00 g of Fe2O3 reacts with excess Al according to the following reaction.             Fe2O3(s) + 2 Al(s)  →  Al2O3(s) + 2 Fe(s)

How many moles of nitrogen are formed when 54.6 g of KNO3 decomposes according to the following reaction?  The molar mass of KNO3 is 101.11 g/mol.             4 KNO3(s)  →  2 K2O(s) + 2 N2(g) + 5 O2(g)

A sample of potassium iodide is decomposed into its constituent elements.  If the sample produced 26.4 kg of potassium, how many kg of iodine were produced?

How many moles of nitrogen are formed when 58.6 g of KNO3 decomposes according to the following reaction?  The molar mass of KNO3 is 101.11 g/mol.             4 KNO3(s)  →  2 K2O(s) + 2 N2(g) + 5 O2(g)

The titration of 80.0 mL of an unknown concentration H3PO4 solution requires 126 mL of 0.138 M KOH solution.  What is the concentration of the H3PO4 solution (in M)?

Determine the molarity of a solution formed by dissolving 89.7 g LiBr in enough water to yield 750.0 mL of solution.

How many grams of Li3N can be formed from 1.15 moles of Li?  Assume an excess of nitrogen.             6 Li(s) + N2(g)  →  2 Li3N(s)

A sample of potassium iodide is decomposed into its constituent elements.  If the sample produced 10.4 kg of potassium, how many kg of iodine were produced?

Determine the percent yield of a reaction that produces 28.65 g of Fe when 50.00 g of Fe2O3 reacts with excess Al according to the following reaction.             Fe2O3(s) + 2 Al(s)  →  Al2O3(s) + 2 Fe(s)

How many moles of oxygen are formed when 36.8 g of KNO3 decomposes according to the following reaction?  The molar mass of KNO3 is 101.11 g/mol. 4 KNO3(s)  →  2 K2O(s) + 2 N2(g) + 5 O2(g)