## Monitoring chemical reactions Higher - OCR Gateway

### 1

What is 20 cm3 in dm3?

### 2

2.0 mol of solute is dissolved in 0.50 dm3 of water. What is the concentration of the solution formed in mol/dm3?

### 3

What is the concentration of 0.100 mol/dm3 NaOH solution in g/dm3? (Relative formula mass of NaOH = 40.0)

### 4

What is 5000 cm3 in dm3?

### 5

0.5 mol of solute is dissolved in water to make 2 dm3 of solution. What is the concentration of the solution in mol/dm3?

### 6

What is the concentration of 2.0 mol/dm3 of sodium chloride solution in g/dm3? (Relative formula mass of NaCl = 58.5)

### 7

A solution has a concentration of 8.0 g/cm3. What mass of NaOH is in 5 dm3 of this solution? (Relative formula mass of NaOH = 40.0)

### 8

A solution of NaOH has a concentration of 4.0 g/dm3. What mass of sodium hydroxide is in 0.250 dm3 of this solution? (Relative formula mass of NaOH = 40.0)

### 9

0.01 dm3 of hydrochloric acid solution contains 0.01 mol of dissolved hydrogen chloride. What is the concentration of the acid in mol/dm3

### 10

What volume of 2.0 mol/dm3 of sodium hydroxide solution contains exactly 1.0 mol of sodium hydroxide?