# AP Chapter 4 Practice Test ### AP Chapter 4 Practice Test

You will have one hour to answer 13 problems similar to these… 1.

The products of the complete combustion of a hydrocarbon are carbon dioxide and water. Write a balanced chemical equation for the combustion of butane, C 4 H 10 . 2.

What mass of carbon is needed to react completely with 23.14 grams of SiO 2 according to the following equation? SiO 2 (s) + 3 C(s)  SiC(s) + 2 CO(g) 3.

What mass of oxygen is consumed by the complete combustion of 25.0 grams of acetylene? 2 C 2 H 2 (g) + 5 O 2 (g)  4 CO 2 (g) + 2 H 2 O(g) 4.

Nitroglycerine decomposes violently according to the unbalanced chemical equation below. How many total moles of gases are produced from the decomposition of 1.00 mol C 3 H 5 (NO 3 ) 3 ? C 3 H 5 (NO 3 ) 3 (l)  CO 2 (g) + N 2 (g) + H 2 O(g) + O 2 (g) 5.

How many liters of 0.1107 M NaOH contain 10.00 g of NaOH? 6.

7.

8.

A 25.00 mL sample of NaOH is titrated with 15.23 mL of 0.2250 M HCl. What is the concentration of the NaOH solution? What is the pH of 0.36M HCl? What is the hydroxide ion concentration in problem #7?