Molarity

Q.

Select True or False:
Molarity of a solution depends upon temperature.

1. True

2. False

Q.

500 ml of 0.1 M KCl, 200 ml of 0.01 M $NaN{O}_3$ and 500 ml of 0.1 M $AgN{O}_3$ was mixed. What is the total number of moles of ions in solution?

1. [] = 0.04, [] = 0.00166, [] = 0.04166

2. [] = 0.04, [] = 0.04, [] = 0.002, [] = 0.04 []=0.042

3. [] = 0.05, [] = 0.0025, [] = 0.0525

4. [] = 0.04, [] = 0.00166, [] = 0.04166

Q.

What volume of 0.10 M$H_{2}S{O}_4$ must be added to 50 ml of a 0.10 M NaOH solution to make a solution in which the molarity of the$H_{2}S{O}_4$ is 0.050 M?

1. 400 ml

2. 50 ml

3. 100 ml

4. 150 ml

Q. How many moles are present in 5.0 litre of 0.4 M ${\text{H}}_2{\text{SO}}_4$ solution?

1. 2.0 Mole
2. 0.4 mole
3. 5.0 mole
4. 2.0 mole

Q.

What volume of 0.50 M $CaC{l}_2$ solution is needed to prepare 250 mL of solution that has a chloride concentration of 0.100 M?

1. 100 mL

2. 25.0 mL

3. 50.0 mL

4. 12.5 mL

Q. How many ml of 1 (M) $H_{2}S{O}_4$ is required to neutralise 10 ml of 1 (M) NaOH solution

1. 2.5
2. 5
3. 10
4. 20

Q.

Calculate Molarity of a solution with 3 moles of compound A in 1L of solution.

1. 1 M

2. 1/3M

3. 3 M

4. 0.3 M

Q. Calculate Molarity of a solution having $2.6\times {10}^{-3}$ mole solute dissolved in 250 ml solution.

1. 2.6 M

2. 0.026 M

3. 0.104 M

4. 0.0104 M

Q.

Calculate milli-moles of solute in 350 ml solution which is 0.75 M.

1. 26.25

2. 2.625

3. 0.2625

4. 262.5

Q.

Calculate Molarity of a solution having 50 milli moles dissolved in 10 mL of solution.

1. 5

2. 0.2

3. 50

4. 1