20. How would you prepare a solution of salt and water if the required concentration is by mass?
a. Dissolve 25 g of salt in 75 g of water
b. Dissolve 25 g of salt in 75 ml of water
c. Dissolve 25 g of salt in 100 g of water
d. Dissolve 25 g of salt in 100 ml of water
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Answer:
20. B
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Explanation:
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