ACIDS, BASES, SALTS, AND NEUTRALIZATION 79 



andNaOH? (5) What is neutralization ? (6; Are definite amounts 

 by weight of HC1 and NaOH required for neutralization ? (7) How 

 many molecules of HC1 are required to neutralize one of NaOH ? 

 (8) How much does a molecule of HC1 weigh? (9) Of NaOH? 

 (10) How many parts by weight of each must be taken for neu- 

 tralization ? (n) How does this illustrate the law of definite pro- 

 portion ? 



