40 



Preparation of Substances 



solution saturated at given temperatures is 

 found in the following table. 



Solubility Table 



Strength of Nitric Acid Solutions 



QUESTIONS 

 (To be answerd in the notebook.) 



1. How many grams of lead nitrate could be made 

 from 20 grams of litharge? What amount of boiling 

 water is necessary to dissolv this amount of salt? 

 (See solubility table.) 



2. How many grams of lead nitrate did you make? 



3. Is the salt more or less soluble in nitric acid than 

 in water? Why? 



4. How many cubic centimeters of nitric acid of a 

 density of 1.10 would be necessary to measure out if 

 200 grams of actual acid were required? 



5. How is nitric acid made? Explain the presence 

 of sulfuric acid in commercial nitric acid. 



