Solutions questions
1397 published questions with worked solutions.
- The freezing point of a 1.00 m aqueous solution of HF is found to be −1.91°C. The freezing point constant of water, K_f is 1.86 K...
- K_f for water is 1.86 K kg mol^ -1 . If your automobile radiator holds 1.0 kg of water, how many grams of ethylene glycol...
- 12 g of a nonvolatile solute dissolved in 108 g of water produces the relative lowering of vapour pressure of 0.1. The molecular...
- A molecule M associates in a given solvent according to the equation M (M)_n. For a certain concentration of M, the van't Hoff...
- Vapour pressure of pure benzene is 119 torr and that of toluene is 37.0 torr at the same temperature. Mole fraction of toluene in...
- How many grams of methyl alcohol should be added to 10 litre tank of water to prevent its freezing at 268 K ? ( K_f for water is...
- Consider separate solutions of 0.500 M C_2H_5OH (aq), 0.100 M Mg_3(PO_4)_2 (aq), 0.250 M KBr (aq) and 0.125 M Na_3PO_4 (aq) at 25...
- For an ideal solution of two components A & B, which of the following is true?
- The observed osmotic pressure for a 0.10 M solution of Fe(NH_4)_2(SO_4)_2 at 25 °C is 10.8 atm. The expected and experimental...
- Choose the correct statement with respect to the vapour pressure of a liquid among the following :
- In a solvent S, a compound B is partially dissociated into C and D as given below: B 2 C +2 D B, C and D are non-volatile in...
- Identify the correct statements : (A) The molality of 2.5 g of ethanoic acid (Molar mass : 60 g mol^ -1 ) in 75 g of benzene...
- Mixture of chloroform and acetone forms a solution with negative deviation from Raoult's law due to :
- **Assertion A:** For an ideal solution formed by mixing liquids P and Q, _ mix H = 0 and _ mix V = 0 **Reason R:** No...
- Consider the following statements about the solutions formed by mixing two liquids. A. An ideal solution thus formed obeys...
- The vapour pressure of acetone at 20 °C is 185 torr. When 1.2 g of a non-volatile substance was dissolved in 100 g of acetone at...
- A solution at 20^ is composed of 1.5 mol of benzene and 3.5 mol of toluene. If the vapour pressure of pure benzene and pure...
- Determination of the molar mass of acetic acid in benzene using freezing point depression is affected by:
- The solubility of N _2 in water at 300 K and 500 torr partial pressure is 0.01 g L^ -1 . The solubility (in g L^ -1 ) at 750 torr...
- 5 g of Na_2SO_4 was dissolved in x g of H_2O . The change in freezing point was found to be 3.82^ . If Na_2SO_4 is 81.5 %...
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