Question

Q.Emily added 5 grams of water into 20 grams of 50% salt solution.
A.She made___grams of___% salt solution.

Answer 1

25 grams of 50%salt solutions

Answer 2

She made 25 grams of 40% salt solution.

Step-by-step explanation:

Given : Emily added 5 grams of water into 20 grams of 50% salt solution.

To find : She made___grams of___% salt solution.

Solution :

The total weight of the solution which is derived from adding 5 grams and 20 grams is

T=5+20=25 grams

The % solution is derived by dividing the amount of salt initially by the total amount of the resulting solution.

i.e. $C=\frac{50\%\times 20}{25}\times 100$

$C=\frac{0.5\times 20}{25}\times 100$

$C=40\%$

The % of salt solution needed is 40%.

Therefore, she made 25 grams of 40% salt solution.

#Learn more

a chemist has one solution which is 40% acid and another which is 20% acid how much each Solutions should the chemist mix to get 10 litre of a solution which is 25℅ acid

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