EASY
Earn 100

State the formula of volume by volume percentage of solution.

Important Questions on Matter: Elements, Compounds and Mixtures

MEDIUM
Which of the following statement is true about the solubility of a substance?
MEDIUM
Which one of the following will show Tyndall Effect.
MEDIUM
Milk is the example of the following type of colloid
MEDIUM
Gas used for precipitation of pure common salt (NaCl) from saturated solution of common salt is 
MEDIUM
A solution is prepared by dissolving 60 g of sugar in 480 g of water. Concentration in terms of mass by a mass percentage of the solution is:
EASY
Calculate the concentration of H2SO4 when 10mL of 0.2M of H2SO4 is added to 90mL of H2O.
MEDIUM
If 110 g of salt is present 550 g of the solution then the concentration of the solution will be:
MEDIUM
What is the mass of oxygen required to react completely with 15 g of H2 gas to form water:
MEDIUM
Take 30g of common salt and dissolve it 70g of water, Find the concentration of the solution in terms of weight percent.
MEDIUM
A solution contains 30 g of sugar dissolved in 370 g of water. What is the concentration of sugar solution?
EASY
The solubility of a saturated solution at some known temperature on heating:
EASY
What are the terms: saturated solution and unsaturated solution?
HARD

The teacher instructed three students ‘A’, ‘B’ and ‘C’ respectively to prepare a 50% (mass by volume) solution of sodium hydroxide (NaOH). 'A' dissolved 50g of NaOH in 100 mL of water, 'B' dissolved 50g of NaOH in 100 g of water while 'C dissolved 50g of NaOH in water to make 100 mL of solution. Which one of them has made the desired solution and why?

EASY
21 g potassium nitrate dissolves in 100 g of water at 10 °C. The solubility of potassium nitrate is: