Chemistry questions
29404 published questions with worked solutions.
- How many grams of concentrated nitric acid solution should be used to prepare 250 mL of 2.0 M HNO_3 ? The concentrated acid is...
- A solution of glucose containing 9.2 g/litre (molecular weight: 180 g/mol) is isotonic with 3% solution of a non-volatile solute....
- The volume of ethyl alcohol (density 1.15 g/cc) that has to be added to prepared 100 cc of 0.5 M ethyl solution in water is...
- A solution has 1 ∶ 3 ratio of cyclopentane to cyclohexane. The vapour pressure of the pure compounds at 25 ℃ are 331 mm Hg for...
- 1000 g of aqueous solution of Na_2CO_3 contains 10 g of sodium carbonate. Concentration of solution is _________
- Which of the following is NOT a colligative property? [MH CET 2009]
- An aqueous solution contains 25% acetic acid and 57% ethanol. The mole fraction of acetic acid, ethanol and water in order is...
- A solution contains 0.524 g of camphor (molar mass = 152 g/mol dissolved in 36.8 g) of ether (boiling point = 34.6 ℃). The molal...
- The depression in freezing point of a 5% aqueous solution of a substance 'A' is equal to the depression in freezing point of a 3%...
- A solution of Al_2(SO_4)_3 (d = 1.253 gm/mL) contain 22% salt by weight. The molarity and molality of the solution is _________...
- At 300 K, vapour pressure of substance A is 0.95 atm and vapour pressure of substance B is 0.15 atm. A solution of A and B is...
- If 45 mL of a 0.2 M solution A is mixed with 60 mL of a 0.3 M solution B and there is no change in volume, the final molarity of...
- 4.0 molar solution is obtained when 1.0 mole solute is dissolved in _________
- Molarity is defined as ________ [MH CET 2015]
- If α is the degree of dissociation of Na_2SO_4 , the van't Hoff's factor (i) used for calculating the molecular mass is ______
- A solution containing 3.56 g of a polymer in 1 litre of a solvent was found to have an osmotic pressure of 5.2 10^ -4 atmosphere...
- In a flask at a certain temperature, there are 2 g H_2 and 8 g O_2 . The mole fraction of H_2 in the given mixture is ________
- What will be the value of molality for an aqueous solution of 10% W/W NaOH? (Na = 23, O = 16, H = 1)
- At equilibrium, the rate of dissolution of a solid solute in a volatile solvent is
- In which ratio of volume 0.4 M HCl and 0.9 M HCl are to be mixed such that the concentration of the resultant solution becomes...