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# Moles calculations Watch

1. Please can someone help with this question and explained how they got the answer.
How many moles of HCL are there in 230cm cubed of 2M hydrochloric acid?
Thanks
2. n=c x v
moles = concentration x volume

M is another way of writing mol dm^-3 (aka concentration)
v is in dm^3 (1000cm^3 in 1dm^3)

so;
n=cxv=2 x (230/1000) = 0.46 mol

3. Thanks
(Original post by kelefi)
n=c x v
moles = concentration x volume

M is another way of writing mol dm^-3 (aka concentration)
v is in dm^3 (1000cm^3 in 1dm^3)

so;
n=cxv=2 x (230/1000) = 0.46 mol

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