smomenshehata smomenshehata

20-11-2021
Chemistry

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Which solution has the same number of moles of KCl as 75.00 mL of 0.250 M solution of KCl?
25.0 mL of 0.175 M solution of KCl
129 mL of 0.145 M solution of KCl
20.0 mL of 0.200 M solution of KCl
50.0 mL of 0.125 M solution of KCl
100 mL of 0.0500 M solution of KCl

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Cleverdude Cleverdude

20-11-2021

Answer:

None of them

Explanation:

The number of moles in 75ml is 0.01875moles while in 25ml is 0.004375 and in 129 ml is 0.018705.

REMEMBER: Molarity is the number of moles per litre so in order to get the number of moles you multiply the molarity of the substance by the quantity of the substance in litres.

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