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Molecular Empirical Formula

Authored by Charles Martinez

Chemistry

10th - 12th Grade

NGSS covered

Used 1+ times

Molecular Empirical Formula
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17 questions

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1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

What is the molecular formula for a compound with the empirical formula: K2SOand a molecular mass of 696g.

K2SO
K8SO16
K8S4O
K8S4O16 

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Whats the empirical formula of a molecule containing 18.7% of Lithium, 16.3% of Carbon and 65.0% of oxygen?

CO2Li3
Li2CO3
Li3CO2
LiCO5

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

What is the empirical formula for the following molecular formula: C6H14

C6H14
C3H7
CH2
CH3

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

What is the molecular formula if the empirical formula is CH2O and the molecular molar mass is 180.18?

CH2O
C2H4O2
C4H8O4
C6H12O6

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

What is the molecular formula of a compound with an empirical formula of C2OH4 and a molar mass of 88 grams per mole?

C2O4H8
C8O2H4
C4O2H8
C4O8H2

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

How many moles are in 88 g of propane, C3H8

2.0
16.0
0.051
3,872

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

What is the empirical formula for the following molecular formula: C5H12

C5H12
CH3
CH2
C2.5H6

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