The molarity of a solution containing 5.85 g of NaCl(s) per 500 mL of solution is -
1. 4 mol L-1
2. 20 mol L-1
3. 0.2 mol L-1
4. 2 mol L-1
If 500 mL of a 5 M solution is diluted to 1500 mL, the molarity of the resultant solution is:
1. 1.5 M
2. 1.66 M
3. 0.017 M
4. 1.59 M
If the concentration of glucose (C6H12O6) in the blood is 0.9 g L-1, then the molarity of glucose in the blood is:
1. 5 M
2. 50 M
3. 0.005 M
4. 0.05 M
The molality of a solution containing 18.25 g of HCl gas in 500 g of water is -
1. | 0.1 m | 2. | 1 M |
3. | 0.5 m | 4. | 1 m |
The number of molecules of H2SO4 present in 100 mL of 0.02 M H2SO4 solution are:
1. molecules
2. molecules
3. molecules
4. molecules
The mass percent of carbon in carbon dioxide is:
1. | 0.034% | 2. | 27.27% |
3. | 3.4% | 4. | 28.7% |
Sulphuric acid reacts with sodium hydroxide as follows
When 1L of 0.1 M sulphuric acid solution is allowed to react with 1 L of 0.1 M sodium hydroxide solution, the amount of sodium sulphate formed and its molarity in the solution obtained are respectively-
1. 0.1 M, 7.10 g
2. 7.10 g, 0.025 M
3. 0.025 M, 3.55 g
4. 3.55 g, 0.25 M
Which of the following solutions have the same concentration?
1. | 20 g of NaOH in 200 mL of solution |
2. | 0.5 mol of KCl in 200 mL of solution |
3. | 40 g of NaOH in 100 mL of solution |
4. | 20 g of KOH in 200 mL of solution |
1. (a), (b)
2. (b), (c)
3. (c), (d)
4. (b), (d)
Unitless term among the following is/are-
(a) Molality
(b) Molarity
(c) Mole fraction
(d) Mass percent
1. (a), (b)
2. (b), (c)
3. (c), (d)
4. (b), (d)