Question

A. Sr (NO3)2 •5 H2O
B. Sr (NO3)2 •3 H2O
C. Sr (NO3)2 •2 H2O
D. Sr (NO3)2 •4H2O

Answer 1

C

Step-by-step explanation:

Answer 2

C. Sr (NO3)2 •2 H2O

Step-by-step explanation:

A 30.7 g sample of Strontium nitrate, Sr(NO3)2⋅nH2O, is heated to a contstent mass of 22.9.

Therefore, the calculated hydration number is Sr (NO3)2 •2 H2O.