Question

a solution contain 30g of sugar dissolve in 370g of water. calculate the concentration of solution

Answer 1

concentration = sugar dissolved / water *100
=30/370 *100 = about 9%

Answer 2

Required Answer:

Given:

• Mass of sugar ( solute ) = 30g

• Mass of water ( solvent ) = 370g

To calculate:

• Concentration of solution

Calculation:

We know that,

• Concentration of solution = ( Mass of solute/Mass of solution ) × 100

Let us calculate the mass of solution first:

→ Mass of solution = Mass of solute + Mass of solvent

→ Mass of solution = ( 30 + 370 )g

→ Mass of solution = 400g

Now,

• Concentration of solution = ( Mass of solute/Mass of solution ) × 100

Substituting all the values:

→ Concentration of solution = ( 30/400 ) × 100

→ Concentration of solution = ( 30 × 100 /400 )

→ Concentration of solution = ( 3000 /400 )

→ Concentration of solution = ( 30 /4 )

→ Concentration of solution = 7.5%

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