1. What mass of ozone, O3, can be produced from 3.50 g of NO2 contained in a car’s exhaust? The equation is as follows: NO2(g) + O2(g) ® NO(g) + O3(g).
A) 3.65 grams
2. In the chemical equation wA + xB ® yC + zD, if one knows the mass of A and the molar masses of A, B, C, and D, one determines the
A) mass of any reactants or products.
3. How much silver in grams can be produced if 3.20 g of Cu are reacted with excess AgNO3 according to the equation Cu(s) + 2AgNO3(aq) ® 2Ag(s) + Cu(NO3)2(aq)?
B) 10.9 grams
4. Dinitrogen trioxide, a blue solid, dissociates to form nitrogen monoxide and nitrogen dioxide gases. What mass of nitrogen dioxide is formed from the decomposition of 13.1 g of N2O3? N2O3 ® NO + NO2
B) 7.93 g
5. The reaction of water and coal at a high temperature produces a mixture of hydrogen and carbon monoxide gases. This mixture is known as synthesis gas (or syngas). What mass of hydrogen gas can be formed from the reaction of 51.3 g of carbon with excess water? C(s) + H2O(g) ®H2 (g) + CO(g)
B) 8.61 g
6. Sodium carbonate reacts with hydrochloric acid, as shown in an unbalanced chemical equation. What mass of NaCl is produced from the reaction of 2.94 g Na2CO3 with excess HCl? Na2CO3(s) + HCl(aq) ®NaCl(aq) + CO2(g) + H2O(l)
A) 5.88 g
A) 3.65 grams
2. In the chemical equation wA + xB ® yC + zD, if one knows the mass of A and the molar masses of A, B, C, and D, one determines the
A) mass of any reactants or products.
3. How much silver in grams can be produced if 3.20 g of Cu are reacted with excess AgNO3 according to the equation Cu(s) + 2AgNO3(aq) ® 2Ag(s) + Cu(NO3)2(aq)?
B) 10.9 grams
4. Dinitrogen trioxide, a blue solid, dissociates to form nitrogen monoxide and nitrogen dioxide gases. What mass of nitrogen dioxide is formed from the decomposition of 13.1 g of N2O3? N2O3 ® NO + NO2
B) 7.93 g
5. The reaction of water and coal at a high temperature produces a mixture of hydrogen and carbon monoxide gases. This mixture is known as synthesis gas (or syngas). What mass of hydrogen gas can be formed from the reaction of 51.3 g of carbon with excess water? C(s) + H2O(g) ®H2 (g) + CO(g)
B) 8.61 g
6. Sodium carbonate reacts with hydrochloric acid, as shown in an unbalanced chemical equation. What mass of NaCl is produced from the reaction of 2.94 g Na2CO3 with excess HCl? Na2CO3(s) + HCl(aq) ®NaCl(aq) + CO2(g) + H2O(l)
A) 5.88 g