Chemistry 101 Final Exam Ivy Tech questions with answers

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Chemistry 101 Final Exam Ivy Tech questions with answers

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Chemistry 101 Final Exam Ivy Tech questions with answers

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Chemistry 101 Final Exam Ivy Tech questions \| \| \| \| \| \| \|

with answers \|

What is the mass percent of hydrogen in water?
\| \| \| \| \| \| \| \|

a: 5.60
\|

b: 11.2
\|

c: 33.3
\|

d: 88.8 - CORRECT ANSWERS ✔✔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 - CORRECT ANSWERS ✔✔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 - CORRECT ANSWERS ✔✔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 - CORRECT ANSWERS ✔✔b
\| \| \| \| \|

What is the correct value for Avogadro's number?
\| \| \| \| \| \| \|

a: 6.022 × 10^2.3
\| \| \|

b: 6.022 × 10^33
\| \| \|

c: 6.022 × 10^23
\| \| \|

d: 6.023 × 10^22 - CORRECT ANSWERS ✔✔c
\| \| \| \| \| \| \|

The empirical formula for C6H6 is C3H3.
\| \| \| \| \| \|

True \|

False - CORRECT ANSWERS ✔✔False
\| \| \| \|

Water is 11.2% hydrogen by mass.
\| \| \| \| \|

True

, False - CORRECT ANSWERS ✔✔True
\| \| \| \|

One mole of CO2 gas contains 1 mole of carbon atoms and 2
\| \| \| \| \| \| \| \| \| \| \| \| \|

moles of oxygen atoms.
\| \| \|

True \|

False - CORRECT ANSWERS ✔✔True
\| \| \| \|

Avogadro's Number is 6.022 × 1023. \| \| \| \| \|

True
False - CORRECT ANSWERS ✔✔True
\| \| \| \|

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 - CORRECT ANSWERS ✔✔b
\| \| \| \| \|

What is the mass of 0.560 moles of chlorine gas?
\| \| \| \| \| \| \| \| \|

a: 19.9
\|

b: 39.7
\|

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Uploaded on: July 13, 2025
Number of pages: 22
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Type: Exam (elaborations)
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