Question

It is desired to prepare 300g of 10% mass by mass percentage of sugar solution. How much sugar should be dissolved for preparing this solution?
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Answer 1

Answer:

30 g

Step-by-step explanation:

Given that it is desired to prepare 300g of 10% mass by mass percentage of sugar solution.

We need to find out that how much sugar should be dissolved for preparing this solution.

Let's say that sugar that dissolved for making this solution is x.

From above it's clear that,

• Mass% = 10%
• Mass of solution = 300 g

Now,

Mass% = (Mass of solute i.e. sugar)/(Mass of solution) × 100

10 = x/300 × 100

10 = x/3

Multiply by 3 on both sides,

10(3) = 3x/3

30 = x

x = 30

Therefore, 30 g of sugar should be dissolved for preparing this solution.

Answer 2

Answer:

Firstly, Mass by mass % means:

mass of solution

mass of ssolute

×100

According to question,

Mass of solution = 300 g

Mass by mass % = 10 %

Putting the values in the formula,

10 = Mass of sugar / 300 × 100

10 = Mass of sugar / 3

Mass of sugar = 30 g

Therefore,

Amount of sugar that should be dissolved in water for preparing this solution is 30 g (ans).

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