Chemistry Chp 9 31-60

For the reaction represented by the equation Pb(NO3)2 + 2KI ----> PbI2 + 2KNO3, how many moles of lead (II) iodide are produced from 300.0g of otassium iodide and an excess of Pb(NO3)2?

0.904 mol

For the reaction represented by the equation Cl2 + 2KBr ---> 2KCl + Br2, how many grams of potassium chloride can be produced from 300.0g each of chlorine and potassium bromide?

188 g

Ozone, O3, is produced by the reaction represented by the following equation: NO2(g) + O2 (g)---> NO(g) + O3(g) What mass of ozone will form from the reaction of 2.0g of NO2 in a car's exhaust and excess oxygen?

2.1g of O3

For the reaction represented by the equation 3Fe + 4H2O ----> Fe3O4 + 4H2, howmany moles of iron (III) oxide are produced from 500.0g of iron in an excess of H2O?

2.98 mol

For the reaction represented by the equation 2KClO3-----> 2KCl + 3O2, how many moles of potassium chlorate are required to produce 250.0g of oxygen?

5.21 mol

For the reaction represented by the equation 2HNO3 + Mg(OH)2 ------> Mg(NO3)2 +2H20, how many grams of magnesium nitrate are produced from 8.00 mol of nitric acid, HNO3, andan excess of Mg(OH)2

593

For the reaction represented by the equation CH4 + 2O2 -----> CO2 + 2H2O, how many moles of carbon dioxide are produced from combustion of 100.0g of methane?

6.23 mol

What is the measured amount of a product obtained from a chemical reaction?

Actual yield

To determine the limiting reactant in a chemical reaction, one must know the

Available amount of each reactant

Which reactant controls the amount of product formed in a chemical reaction?

Limiting Reactant

A chemical reaction involving substances A and B stops when B is completely used B is the

Limiting reactant

After calculating the amount of reactant B required to completely react with A, then comparing that amount with the amount of B available, one can determine

Limiting reactant

What is the ratio of the actual yield of the theoretical yield multiplied by 100%?

Percentage yield

When the limiting reactant in a chemical reaction is completely used, the

Reaction stops

To determine the limiting reactant in a chemical reaction involving known masses of A and B, one could first calculate

The number of moles of B and the number of moles of A available