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X grams of water were added to the grams of a strong

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SVP
SVP
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Joined: 21 Jul 2006
Posts: 1508
X grams of water were added to the grams of a strong [#permalink]

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New post 11 Nov 2008, 01:53
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A
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E

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X grams of water were added to the grams of a strong solution of acid. As a result, the concentration of acid in the solution dropped by Y percent. What was the concentration of acid in the original solution?

(1) X = 80

(2) Y = 50






Would please show me the formula? thanks
SVP
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Joined: 17 Jun 2008
Posts: 1529
Re: DS: Mixture [#permalink]

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New post 11 Nov 2008, 02:48
It should be E as the original weight of solution is not know.
Senior Manager
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Posts: 348
Re: DS: Mixture [#permalink]

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New post 11 Nov 2008, 05:05
I get E as well.
We can find the Original weight of the acid usng 1 and 2 but not the concentration.
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Re: DS: Mixture   [#permalink] 11 Nov 2008, 05:05
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X grams of water were added to the grams of a strong

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