Mass of CO2 produced in Hcl+Na2Co3 ? Watch

boogiewoogie
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2HCl + Na2CO3 => 2NaCl + CO2 +H2O

HCl and Na2CO3 both have volume of 20cm3, concentration 2M.
The question is what mass of CO2 in g is produced.

I calculated that the number of moles for the limiting Na2CO3 is 0.0016, then m=n x Mr makes the mass of CO2 0.0704 g. However, the real answer I was given by the exam board is 0.88. I don't know what I haven't tried and I ran out of ideas. Can anyone please tell me what my mistake is?

Thanks!
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TSR Jessica
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Sorry you've not had any responses about this. Are you sure you've posted in the right place? Here's a link to our subject forum which should help get you more responses if you post there.
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