Question

Agar right answer ptaa ho to tab hii jabab dena varna bakwass mat karna​

Answer 1

Answer:

2)and÷...concentration = Mass of solute/mass of solvent × 100

Given, mass of salt = 2.5g

mass of water = 50g

therefore, total mass of the solution = 50g+2.5g

therefore the....concentration = 2.5/52.5 ×100

= 4.

3)ans÷ i. Gas...ex:Air

ii. Liquid...ex: seltzer water

iii. Solid...ex: Gold

4) ans÷i) The substance that dissolves on a solvent to produce a homogenous mixture is called a solute.

ii)The substance in which a solute dissolves to produce a homogenous mixture is called a solvent.

Answer 2

Aapke answers ^_^

1. We mean that there is 15 ml of alcohol in 100 ml of that solution

2. As we know that mass of solution = mass of solute + mass of solvent

= 2.5 + 50

= 52.5g

concentration of the solution = (mass of solute/mass of solution) × 100

= $\frac{2.5}{52.5}$ × 100

= 4.76% (approximately)

3. Solid in solid. Eg: Alloys

Solid in liquid. Eg: Sugar solution

Solid in gas. Eg: Hydrogen in platinum

Liquid in solid. Eg: Amalgam

Liquid in liquid. Eg: Water and alcohol

Liquid in gas. Eg: Cola or carbonated drinks

Gas in solid. Eg: Hydrogen in platinum

Gas in liquid. Eg: Cola

Gas in gas. Eg: Smoke

4. Solute: The substance that is in less amount in a solution

Solvent: The substance that is in greater amount in a solution