Hydrochloric acid (HCl) reacts with sodium hydroxide (NaOH) in a standard acid–base reaction. The balanced equation is shown below.

NaOH + HCl mc014-1.jpg NaCl + H2O

The molar mass of NaOH is 40.00 g/mol. The molar mass of HCl is 36.46 g/mol. What mass, in grams, of NaOH is needed to react completely with 73.0 g of HCl?
2.00
20.0
66.5
80.1

Question

Hydrochloric acid (HCl) reacts with sodium hydroxide (NaOH) in a standard acid–base reaction. The balanced equation is shown below.

NaOH + HCl mc014-1.jpg NaCl + H2O

The molar mass of NaOH is 40.00 g/mol. The molar mass of HCl is 36.46 g/mol. What mass, in grams, of NaOH is needed to react completely with 73.0 g of HCl?
2.00
20.0
66.5
80.1

anonymous · Answer

maybe 20......not sure

cuanchi · Answer

No!
The soichiometry of the reaction is telling you that 1 mol of NaOH will react with one mol of HCl acid. Or one MM of NaOH will react with one MM of HCl acid

preetha · Answer

Cuanchi is right.  You need to convert the g of HCL to moles of HCl first.