Chemistry 101 Final Exam Ivy Tech
CHEMISTRY 101 FINAL EXAM IVY TECH NEWEST 2025/2026
COMPLETE ALL 100 QUESTIONS AND CORRECT DETAILED
ANSWERS (VERIFIED ANSWERS) |ALREADY GRADED A+||BRAND
NEW VERSION!!
A 500. gram iron ore sample was determined to contain 242 grams of iron. What
is the mass percent of iron in the ore?
a: 32.6
b: 48.4
c: 51.6
d: 93.7 - ANSWER-b
What is the mass of 0.560 moles of chlorine gas?
a: 19.9
b: 39.7
c: 127
d: 63.3 - ANSWER-b
How many molecules of nitrogen monoxide are in a 22.5 gram sample?
a: 4.51 × 10^23
b: 7.33 × 10^23
1|Page
, Chemistry 101 Final Exam Ivy Tech
c: 4.06 × 10^23
d: 5.86 × 10^23 - ANSWER-a
How many molecules of sulfur trioxide are in 78.0 grams?
a: 5.87 × 10^23
b: 7.33 × 10^23
c: 0.974
d: 3.76 × 10^27 - ANSWER-a
In comparing 1 mole of carbon atoms to one mole of magnesium atoms, which
statement is TRUE?
a: The mass of 1 mole of carbon is the same as the mass of 1 mole of magnesium.
b: The mass of 1 mole of carbon is greater than the mass of 1 mole of magnesium.
c: There are more atoms in 1 mole of magnesium than in 1 mole of carbon.
d: The mass of 1 mole of magnesium is greater than the mass of 1 mole of carbon.
- ANSWER-d
What is the mass percent of hydrogen in water?
a: 5.60
b: 11.2
c: 33.3
2|Page
, Chemistry 101 Final Exam Ivy Tech
d: 88.8 - ANSWER-b
How many atoms are in 5.80 moles of He?
a: 3.49 × 10^24
b: 6.02 × 10^23
c: 1.03 × 10^23
d: 4.00 - ANSWER-a
What is the value of n when the empirical formula is C3H5 and the molecular
mass is 205.4 g/mol?
a: 10
b: 0.02
c: 140
d: 5 - ANSWER-d
How many atoms are in 15.6 grams of silicon?
a: 0.555
b: 3.34 × 10^23
c: 2.64 × 10^26
d: 438 - ANSWER-b
3|Page
CHEMISTRY 101 FINAL EXAM IVY TECH NEWEST 2025/2026
COMPLETE ALL 100 QUESTIONS AND CORRECT DETAILED
ANSWERS (VERIFIED ANSWERS) |ALREADY GRADED A+||BRAND
NEW VERSION!!
A 500. gram iron ore sample was determined to contain 242 grams of iron. What
is the mass percent of iron in the ore?
a: 32.6
b: 48.4
c: 51.6
d: 93.7 - ANSWER-b
What is the mass of 0.560 moles of chlorine gas?
a: 19.9
b: 39.7
c: 127
d: 63.3 - ANSWER-b
How many molecules of nitrogen monoxide are in a 22.5 gram sample?
a: 4.51 × 10^23
b: 7.33 × 10^23
1|Page
, Chemistry 101 Final Exam Ivy Tech
c: 4.06 × 10^23
d: 5.86 × 10^23 - ANSWER-a
How many molecules of sulfur trioxide are in 78.0 grams?
a: 5.87 × 10^23
b: 7.33 × 10^23
c: 0.974
d: 3.76 × 10^27 - ANSWER-a
In comparing 1 mole of carbon atoms to one mole of magnesium atoms, which
statement is TRUE?
a: The mass of 1 mole of carbon is the same as the mass of 1 mole of magnesium.
b: The mass of 1 mole of carbon is greater than the mass of 1 mole of magnesium.
c: There are more atoms in 1 mole of magnesium than in 1 mole of carbon.
d: The mass of 1 mole of magnesium is greater than the mass of 1 mole of carbon.
- ANSWER-d
What is the mass percent of hydrogen in water?
a: 5.60
b: 11.2
c: 33.3
2|Page
, Chemistry 101 Final Exam Ivy Tech
d: 88.8 - ANSWER-b
How many atoms are in 5.80 moles of He?
a: 3.49 × 10^24
b: 6.02 × 10^23
c: 1.03 × 10^23
d: 4.00 - ANSWER-a
What is the value of n when the empirical formula is C3H5 and the molecular
mass is 205.4 g/mol?
a: 10
b: 0.02
c: 140
d: 5 - ANSWER-d
How many atoms are in 15.6 grams of silicon?
a: 0.555
b: 3.34 × 10^23
c: 2.64 × 10^26
d: 438 - ANSWER-b
3|Page
