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If 6.5 L of water is added to 4.5 L of a 2.8 M Ca(OH)2 solution, what is the molarity of the new solution?
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If 6.5 L of water is added to 4.5 L of a 2.8 M Ca(OH)2 solution, what is the molarity of the new solution?

User Luis Aceituno
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1 Answer

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Find moles of Ca(OH)2 first:

moles = 2.8 x 4.5 = 12.6

Now,
After addition, new volume = 6.5 + 4.5 = 11.0

So, new molarity = 12.6 / 11 = 1.145
User Pat Dobson
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