The % by mass of salt in a salt solution is 20%. If the mass of the solution is 600 grams, what is the mass of the water (in grams)?a.215b.120c.480d.360
Question
The % by mass of salt in a salt solution is 20%. If the mass of the solution is 600 grams, what is the mass of the water (in grams)?
a. 215
b. 120
c. 480
d. 360
Solution
The mass of the salt solution is given as 600 grams, and we know that 20% of this is salt.
Step 1: Calculate the mass of the salt. 20/100 * 600 = 120 grams
This means that out of the 600 grams, 120 grams is salt.
Step 2: Subtract the mass of the salt from the total mass of the solution to find the mass of the water. 600 - 120 = 480 grams
So, the mass of the water in the solution is 480 grams. Therefore, the correct answer is c.480.
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