Question

If 20 grams of sugar was mixed in 500 ml water, then find Molarity .

Answer 1

Answer:

Correct option is

B

0.2 M

Molar mass of the solute CaBr

2

=40+(2×80)=200g/mole

Number of moles of solute =

200

20

=0.1 moles

volume=500mL=0.5L

So, Molarity=

volume

number of moles

×1000=

500

0.1

×1000=0.2M

Answer 2

Answer:

Molarity = 0.117 M

Explanation:

Here W = given mass of sugar and M = molar mass of sugar .