Question

if common salt is 45g in 100g of water at 30℃ then calculate the amount of common salt in 200g of water at the same temperature​

Answer 1

Answer:

90gram .I think it will help

Answer 2

Given: the weight of common salt, w₁ = 45g

           the weight of water, M₁ = 100g, M₂ = 200g

To Find: the amount of common salt in 200g of water, w₂.

Solution:

To calculate w₂, the formula used:

• w₁ / M₁ = w₂ / M₂

Applying the above formula:

45 / 100 = w₂  / 200

0.45 = w₂ / 200

w₂ / 200 = 0.45

w₂ = 0.45 x 200

    = (45/100) x200

    = 45 x 2

    = 90

w₂ = 90 g

Hence, the amount of common salt is 90 gms.