Q3 Review: Molar Relationships & States of Matter
Authored by Heyana Mims
Chemistry
9th - 12th Grade
NGSS covered
Used 4+ times
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20 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
How many molecules are in 2.1 moles of CO2?
3. 5 x 10-24
1.26 x 1024
44
92.4
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
How many moles are in 5.0 L of Ar gas (at STP)
0.22 moles
112 moles
1 mole
0.125
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
What is the mass in grams of 5.9 mol C8H18?
114.23 grams
674 grams
0.05 grams
1 gram
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
What is the empirical formula for C3H6?
C2H
CH2
C3H6
CH3
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
What is the empirical formula for C12H22O11?
CH2O
C12H22O11
C6H11O6
CH3
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
What is the empirical formula for C2H4Br2?
C2H4Br2
CH2Br
C2HBr2
CHBr
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
A compound consists of 75% carbon and 25% hydrogen by mass. What is the empirical formula?
C2H4
CH4
CH
C3H6
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