Question

A salt solution is prepared by dissolving 60 g of salt in 140 g of water. Calculate the amount of solute
that should be added to this solution in order to make its concentration 50% (w/w).
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Answer 1

Answer:

end of thinking capa ity

Step-by-step explanation:

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Answer 2

Answer:salt=60g and water is 140g

(W/W)=60+140=200g

60g/200g*100=30%

To make it 50% we will have to change the mass of both water and salt to make 50%(w/w) concentration

Therefore if we add 40g more to amount of original salt and reduce 40g of water from original amount of water we get salt=100g and water=100g

Therefore 100+100=200

100/200*100=50%

Step-by-step explanation: