CHEM 1305 TTU EXAM 3 STUDY GUIDE 2026 TESTED QUESTIONS AND PRACTICE SOLUTION GRADED A+

CHEM 1305 TTU EXAM 3 STUDY GUIDE 2026
TESTED QUESTIONS AND PRACTICE
SOLUTION GRADED A+

◉ How many moles of hydrogen iodide are produced from 1.00 mol
of iodine?
D
__H2(g) + __I2(g) -> __HI(g) (ch. 9).
Answer: 2.00 mol


◉ How many moles of oxygen gas react with 0.100 mol of pentane,
C5H12?
spark
__C5H12 (g) + __O2(g) -> __CO2(g) + __H2O(g) (ch. 9).
Answer: 0.800 mol


◉ What is the mass of aluminum oxide (101.96 g/mol) produced
from 3.59 g of iron(II) oxide (71.85 g/mol)?
D
__FeO(l) + __Al(l) -> __Fe(l) + __Al2O3(l) (ch. 9).
Answer: 1.70 g

, ◉ What is the volume of oxygen gas at STP from the decomposition
of 1.70 g of sodium nitrate (85.00 g/mol)?
D
__NaNO3(s) -> __NaNO2(s) + __O2(g) (ch. 9).
Answer: 0.224 L


◉ What volume of hydrogen gas reacts with 12.0 mL of nitrogen
gas?
(Assume temperature and pressure remain constant.)
Fe/Al2O3
__N2(g) + __H2(g) -> __NH3(g) (ch. 9).
Answer: 36.0 mL


◉ What volume of oxygen gas reacts with 5.00 L of propane gas,
C3H8?
(Assume temperature and pressure remain constant.)
spark
__C3H8(g) + __O2(g) -> __CO2(g) + __H2O(g) (ch. 9).
Answer: 25.0 L


◉ Considering the limiting reactant concept, how many moles of
copper(I) sulfide are produced from the reaction of 1.00 mol of
copper and 1.00 mol of sulfur?