Solutions questions
1397 published questions with worked solutions.
- The mass of a non-volatile solute of molar mass 40 g mol^ -1 that should be dissolved in 114 g of octane to lower its vapour...
- 58.5 g of NaCl and 180 g of glucose were separately dissolved in 1000 mL of water. Identify the correct statement regarding the...
- Two solutions of HCl, A and B have concentrations of 0.5 N and 0.1 M respectively. The volume of solutions A and B required to...
- A solution at 20^ C is composed of 1.5 moles of benzene and 3.5 moles of toluene. If the vapour pressure of pure benzene and pure...
- The relative lowering of vapour pressure of an aqueous solution containing a non-volatile solute is 0.0125. The molality of the...
- How many grams of methyl alcohol should be added to 10 L tank of water to prevent its freezing at 268 K ?
- The osmotic pressure of 12% solution of cane sugar at 17^ C is
- 5.5 mg of nitrogen gas dissolves in 180 g of water at 273 K and 1 atm pressure due to nitrogen gas. The mole fraction of nitrogen...
- A solution of 1.25 g of ' P ' in 50 g of water lowers freezing point by 0.3^ C . Molar mass of ' P ' is 94. K_ f( water ) = 1.86...
- Consider separate solution 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^...
- What will be the value of molality for an aqueous solution of 10% w/w NaOH ? (Na = 23, O = 16, H = 1)
- Benzene and naphthalene form an ideal solution at room temperature. For this process, the true statement(s) is are
- Identify the mixture that shows positive deviation from Raoult's law.
- An aqueous solution freezes at -0.186^ C then elevation in boiling point is (K_b = 0.512, K_f = 1.86)
- Vapour pressure of pure water is 40 mm. If a non-volatile solute is added to it vapour pressure falls by 4 mm. Hence, molality of...
- Aluminium phosphate is 100% ionised in 0.01 molal aqueous solution. Hence, T_b / K_b is
- The vapour pressure of water is 12.3 kPa at 300 K. Calculate the vapour pressure of 1 molal solution of a non-volatile solute in...
- Henry's law constant for the molality of methane in benzene at 298 K is 4.27 10^5 mmHg. Calculate the solubility of methane in...
- The solubility of N_2 (g) in water exposed to the atmosphere, when the partial pressure is 593 mm, is 5.3 10^ -4 M. Its...
- Nalorphene ( C_ 19 H_ 21 NO_3 ), similar to morphine, is used to combat withdrawal symptoms in narcotic users. Dose of nalorphene...
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