Question

NaHCO3 can react with both NaOH and HCl .Give two reasons​

Answer 1

( According to the chemical reaction (1) between HCl and NaOH, 1 molecule of HCl will react with exactly 1 molecule of NaOH. Therefore, the number of moles of base needed to react with all of the acid present is the same as the number of moles of acid present in the solution. So, at equivalence point,

moles HCL = moles NaOH

We can calculate the number of moles of NaOH at the equivalence point by multiplying its concentration (in terms of molarity or moles/L) by the volume of NaOH added in order to reach the equivalence point