solution and an acid-base indicator are used to determine
the molarity of an HCl(aq) solution. A 250-milliliter sample
of the HCl(aq) is exactly neutralized by 15.0 milliliters of
0.20 M NaOH(aq).
the laboratory process described in this passage. 
the equation in your answer booklet for the neutralization
reaction that occurs, by writing a formula for each product.
+ NaOH(aq) ==> ________ + ________
+ NaOH(aq) ==>
NaCl + H2O
64 Based on
the data, the calculated molarity of the HCl(aq) solution
should be expressed to what number of significant figures?
65 Using the
data, determine the concentration of the HCl(aq).