Chemistry questions
29404 published questions with worked solutions.
- Molarity is expressed as
- Molarity of a solution prepared by dissolving 75.5 g of pure KOH in 540ml solution is
- The molarity of a solution made by mixing 50ml of conc. H_2SO_4 (36 N) with 50ml water is
- 3.65 gms HCl is dissolved in 16.2 gms of water. The mole fraction of HCl in the resulting solution is
- If one mole of a substance is present in 1 kg of solvent, then
- Which statement is true for solution of 0.020 M H_2SO_4 ?
- 5 ml of N HCl, 20 ml of N/2 H_2SO_4 and 30 ml of N/3 HNO_3 are mixed together and volume made to one litre. The normality of the...
- The weight of H_2C_2O_4 2H_2O required to prepare 500ml of 0.2 N solution is
- When the concentration is expressed as the number of moles of solute per kg of solvent it is known as
- 0.5 M of H_2SO_4 is diluted form 1 litre to 10 litre ,normality of resulting solution is
- 2.0 molar solution is obtained when 0.5 mole solute is dissolved in
- A mixture has 18 g water and 414 g ethanol. The mole fraction of water in mixture is (assume ideal behaviour of the mixture)
- A sugar syrup of weight 214.2 grams contains 34.2 grams of sugar. The molal concentration is :
- The amount of K_2Cr_2O_7 (eq. wt. 49.04) required to prepare 100ml of its 0.05 N solution is
- Molarity of 4 % NaOH solution is
- Normality (N) of solution is equal to
- A solution contains 1.2046 10^ 24 hydrochloric acid molecules in one dm^3 of the solution. The strength of the solution is
- A molal solutions is one that contains one mole of a solute in
- The amount of anhydrous Na_2CO_3 present in 250 ml of 0.25M solution is
- A solution of Al_2(SO_4)_3 d=1.253 gm/ml contains 22 % salt by weight. The Molarity normality and Molality of the solution is...