GC Destroyer 2017 #12

[deleted678432]

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Can anybody help me reword this question??

It reads: "How many grams of 2.0% [w/w] NaCl soln contains 0.50g of NaCl"

I understand the concentration calculations.. but I don't get what this question is even asking. Can anybody help me reword this?

 

[MickeyMug]

So the question is basically saying if you have 0.50g of NaCl in a solution that weighs X grams and the 0.50g contribute to 2% of the solution's weight(X), then find X.
0.50/X = 2/100 => 2X = 50 => X = 25

Lol I'm not sure if this helps

 

[deleted678432]

So the question is basically saying if you have 0.50g of NaCl in a solution that weighs X grams and the 0.50g contribute to 2% of the solution's weight(X), then find X.
0.50/X = 2/100 => 2X = 50 => X = 25

Lol I'm not sure if this helps

Yeah maybe I just need to brush up on this. I can't get the conceptual side of this question down really