13.C 4 H 11 N(1) +O 2 (g) →__CO 2 (g)
+__ H 2 O(l) +__ N 2 (g)When the above equation is balanced, the lowest
whole number coefficient for O 2 is:(A) 4
(B) 16
(C) 22
(D) 27
(E) 214.2 KMnO 4 +5 H 2 C 2 O 4 +3 H 2 SO 4 → K 2 SO 4
+2 MnSO 4 +10 CO 2 +8 H 2 OHow many moles of MnSO 4 are produced when
1.0 mol of KMnO 4 , 5.0 mol of H 2 C 2 O 4 , and
3.0 mol of H 2 SO 4 are mixed?(A) 4.0 mol
(B) 5.0 mol
(C) 2.0 mol
(D) 2.5 mol
(E) 1.0 mol15.KClO 3 →KCl +__O 2
After the above equation is balanced, how many
moles of O 2 can be produced from 4.0 mol of
KClO 3?(A) 2.0 mol
(B) 4.0 mol
(C) 5.0 mol
(D) 6.0 mol
(E) 3.0 mol16.When the following equation is balanced, it is
found that 1.00 mol of C 8 H 18 reacts with how
many moles of O 2?
__C 8 H 18 +__ O 2 →__ CO 2 +__ H 2 O(A) 1.00 mol
(B) 10.0 mol
(C) 25.0 mol
(D) 37.5 mol
(E) 12.5 mol17.Ca +2 H 2 O →Ca(OH) 2 +H 2Calcium reacts with water according to the
above reaction. What volume of hydrogen gas, at
standard temperature and pressure, is produced
from 0.200 mol of calcium?
(A) 5.60 L
(B) 2.24 L
(C) 3.36 L
(D) 1.12 L
(E) 4.48 L18.2CrO 42 −+ 3SnO 22 −+H 2 O →2 CrO 2 −+3 SnO 32 −+2 OH−How many moles of OH−form when 50.0 mL
of 0.100 M CrO 42 −is added to a flask contain-
ing 50.0 mL of 0.100 M SnO 22 −?(A) 0.100 mol
(B) 6.66 × 10 −^3 mol
(C) 3.33 × 10 −^3 mol
(D) 5.00 × 10 −^3 mol
(E) 7.50 × 10 −^3 mol19.A solution containing 0.20 mol of KBr and
0.20 mol of MgBr 2 in 2.0 liters of water is pro-
vided. How many moles of Pb(NO 3 ) 2 must be
added to precipitate all the bromide as insoluble
PbBr 2?(A) 0.10 mol
(B) 0.50 mol
(C) 0.60 mol
(D) 0.30 mol
(E) 0.40 molStoichiometry 97