Q. No.In the production of TUV₄, the reaction is:
T + U + 4V → TUV₄
Calculate the value of x, if 10 moles of T, 7.5 moles of U, and 0.8 moles of V react to form x grams of TUV₄:
(Given the atomic masses are T = 20 g/mol, U = 40 g/mol, and V = 10 g/mol)
| 1. | 60 g | 2. | 10 g |
| 3. | 40 g | 4. | 20 g |
1. 0.4 M
2. 0.8 M
3. 0.2 M
4. 0.1 M
1. 50.0 mL
2. 60.0 mL
3. 100 mL
4. 110 mL
| 1. | 0.4 M | 2. | 0.2 M |
| 3. | 0.8 M | 4. | 0.6 M |
Which of the following terms are unitless?
(a) Molality
(b) Molarity
(c) Mole fraction
(d) Mass per cent
Select the correct option:
1. (a), (b)
2. (b), (c)
3. (a), (b), (c)
4. (c), (d)
Which of the following concentration factor is affected by a change in temperature?
1. Molarity
2. Molality
3. Mole fraction
4. Weight fraction
| Assertion (A): | Mole fraction is a unitless quantity. |
| Reason (R): | Mole fraction is the ratio of the number of moles of a particular component to the total number of moles of the solution. |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 3. | (A) is True but (R) is False. |
| 4. | Both (A) and (R) are False. |
1. 800
2. 700
3. 400
4. 500
1. \( 2.73~\text{g}\)
2. \(3.68~\text{g}\)
3. \(27.3~\text{g}\)
4. \(164~\text{g}\)
What is the molarity of a solution prepared by dissolving 5.85 g of NaCl in enough water to make 500 mL of solution?
1. 4 mol L–1
2. 20 mol L–1
3. 0.2 mol L–1
4. 2 mol L–1
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