Homework Help: chemistry

Posted by cheri on Wednesday, September 19, 2012 at 5:05pm.

What mass of silver nitrate (AgNO3) is re-
quired to prepare 400 g of a 3.50% solution of
AgNO3?
1. 14 g
2. 0.00875 g
3. 114.28 g
4. 1400 g

chemistry - DrBob222, Wednesday, September 19, 2012 at 8:22pm
percent what? w/w; w/v, v/v, etc.
I assume this is mass percent.
(g AgNO3/400 g soln)*100 = 3.50
Solve for g AgNO3.

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