Question

How will you prepare 500cm3 of 0.5M NaHCO3 solution
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Answer 1

To make 0.5 M of NaOH, measure 20 g of sodium hydroxide and dissolve it in 1000 ml of water; we have used 20 g because the RMM [relative molar mass] of NaOH is 40 and we are making 0.5 M solution.