titative Preparation of sodium chloride ite the balanced equation for the betwee
ID: 511645 • Letter: T
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Explanation / Answer
Balance reaction between NaHCO3 and HCl is : NaHCO3 + HCl = NaCl + CO2 + H2O
1 mol of naCl is formed from 1 mol NaHCO3
moles of NaHCO3 used = 1.75 gm/ 84g/mol = 0.021 moles
Theoretical moles of NaCl = 0.021 moles
Theoretical mass of NaCl = 0.021 mol * 58.5g/mol = 1.23 gm
Amount of NaCl obtained = 1.63 gm
% error = { I theoretical value- experimental value I/ theoretical value } * 100 % = 32.5 %
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