Question

5. Find the amount of table salt in 200 g of a solution if the solution is 70% table salt.

Answer 1

Answer:

To make a salt solution by weight percent, use the formula w/v = (mass of solute ÷ volume of ... Determine Final Volume ... Don't simply measure 200 ml of water and add 10 g of salt.

Answer 2

The amount of table salt in the solution is 140 grams

GIVEN

Weight of the solution = 200 grams

Percentage of table salt = 70%

TO FIND

Amount of table salt.

SOLUTION

We can simply solve the above problem as follows;

It is given,

Weight of the solution = 500 grams

Weight % of table solute = 70%

Let the weight of the solute = x grams

We know that the weight% is the ratio of weight of the solute to the weight of the solvent multiplied by 100.

Formula to calculate weight% is as follows;

$weight\% = \frac{mass \: of \: solute}{weight \: of \: solution} \times 100$

Putting the values in the above formula we get;

$70 = \frac{x}{200} \times 100$

Bringing the like terms together.

$\frac{70 \times 200}{100} = x$

x = 140 grams

Hence, The amount of table salt in the solution is 140 grams

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