The mass of 70% acetic acid required for the preparation of 150 g of table vinegar with a mass fraction of 3.5% is equal to?

The first thing we need to do is find how much acid is in the 9% solution.

X = 150 * 9/100 = 13.5 g of acetic acid.

Now we need to calculate the mass of the 70% acid.

Y = 13.5 * 100/70 = 19.29 g. 70% acid

Answer: the mass of 70% acetic acid is 19.29 grams.



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