Home
Class 9
PHYSICS
A solution contains 50 g of comon salt i...

A solution contains 50 g of comon salt in 200 g of water. Calculate the concentration in terms of mass by mass percentage of the solution?

Text Solution

Verified by Experts

Mass of solute( salt) =50g
Mass of solvent (water) =200 g
Mass of solution =Mass of solute + Mass of solvent
`=50g+200g=250g`
Mass percentage of a solution =
`=("Mass of solute")/("Mass of solution")xx100`
`=50/250xx100=20%`
Promotional Banner

Topper's Solved these Questions

  • IS MATTER PURE?

    NCERT KANNAD|Exercise LET US IMPROVE OUR LEARNING (Reflections on concepts )|1 Videos

  • IS MATTER PURE?

    NCERT KANNAD|Exercise LET US IMPROVE OUR LEARNING ( Application of concepts)|2 Videos

  • HEAT

    NCERT KANNAD|Exercise Multiple choice questions|5 Videos

  • LAW OF MOTION

    NCERT KANNAD|Exercise LET US IMPROVE OUR LEARNING (HIGHER ORDER THINKING QUESTIONS )|3 Videos

Similar Questions

Explore conceptually related problems

A solution contains 40 ml of ethylalcohol mixed with 100 ml of water. What is the concentration of the solution in terms of volume by volume percentage.

A solution is obtained by mixing 300 g of 25% solution and 400 g of 40% solution by mus. Calculate the moss per centage of the resulting solution.

The vapour pressure of a solution cont.aning 10 g of a non-electrolyte in 200 g of water at a particular temperature is 2985 Pa. The vapour pressure of pure water at that temperature is 3000 Pa. Calculate the molecular mass of the solute.

A stream of dry air was passed through a bulb containing a solution of 7.5 g of a compound dissolved in 75 g of water and then through another bulb containing pure water. The loss of mass in the first bulb was 2.81 g and in the second bulb was 0.054 g. Calculate the molecular mass of the compound.

A solution of an organic compound is prepared by dissolving 30 g in 100 g water. Calculate the molecular mass of compound and the osmotic pressure of solution at 300 K , when the elevation in boiling point is 0.52 and K_(b) for water is 0.52 K m^(-1) .

A solution is prepared by adding 2 g of a substance A to 18 g of water. Calculate the mass percent of the solute.

A solute containing 0.564g of solute in 36.8g of acetone boils at 56.46^(@)C . Calculate the molar mass of solute if the boiling point of acetone is 56.30^(@)C . [ K_(b) for acetone 1.92K kg. mol^(-1) ]

A solution containing 12.5 g of non-electrolyte solution in 175g of water gave a boiling point elevation of 0.7 k. calculate the molar mass of the solute if K_(b) for water is 0.52 K kg mol^(-1) .

(a) Define the following terms : (i) Molarity (ii) Molal elevation constant (K_(b)) (b) A solution containing 15 g urea (molar mass = 60 g mol^(-1) ) per litre of solution in water has same osmotic pressure (isotonic) as a solution of glucose (molar mass = 180 g mol^(-1) ) in water. Calculate the mass of glucose present in one litte of its solution.