posted by Sharon .
What are the accepted values for the number of moles of NaCl that are produced from HCl and the following various amounts of grams of NaHCO3;
All of these are done alike. I'll do the first one.
HCl + NaHCO3 ==> H2O + NaCl + CO2
mols NaHCO3 = grams/molar mass = 0.25/84 = 0.00298.
mols NaCl = mols NaHCO3 (from the 1:1 ratio in the balanced equation.)
Therefore mols NaCl from 0.25 mols NaHCO3 = 0.0030 mols to two significant figures.