Verified Answer :

daniel987

reaction is NaHCO3 + HCL = H2CO3 + NaCl
the ratios are 1:1 

the 8 moles of HCl are in excess

so if you use 4 moles of NaHCO3 then you will obtain 4 moles of carbonic acid

hope that helps

The number of moles of
carbonic acid that can be produced from 4 mol of NaHCO3 and 8 mol of HCl is 4
moles. I am hoping that this answer has satisfied your query and it will
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