A sample of ammonium phosphite nh43po3 contains 0909

14. A sample of ammonium phosphite, (NH4)3PO3, contains 0.909 mol of hydrogen atoms.
The number of moles of oxygen atoms in the sample is
A) 0.227 mol.
B) 0.0909 mol.
C) 0.300 mol.
D) 0.227 mol.
E) 3.00 mol.
ANS: A
15. A sample of gallium(III) sulfite, Ga2(SO3)3, contains 1.95 mol of sulfite ions. The
number of moles of gallium(III) ions in the sample is
16. Sorbose, C6H12O6, is used in making vitamin C. A sorbose sample containing 96.0 g of
carbon atoms also contains ____ g of hydrogen atoms.

D) 96.0
E) 7.99
ANS: B
17. Consider the following three samples:
 A sample containing 180 g glucose (C6H12O6)
 A sample containing 90 g glucose and 90 g fructose (C6H12O6)
 A sample containing 180 g fructose
Which statement is correct?