Problem: Be sure to answer all parts.Calculate the amount of water (in grams) that must be added to each of the following substances to produce the indicated solution. (a) 5.70 g of urea (NH2)2 CO in the preparation of a 24.8 percent by mass solution: (b) 33.1 g of MgCl2 in the preparation of a 4.9 percent mass solution:

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Be sure to answer all parts.

Calculate the amount of water (in grams) that must be added to each of the following substances to produce the indicated solution. 

(a) 5.70 g of urea (NH2)2 CO in the preparation of a 24.8 percent by mass solution: 

(b) 33.1 g of MgCl2 in the preparation of a 4.9 percent mass solution:


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