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Empirical and Molecular Formula Notes

Empirical and Molecular Formula Notes

Assessment

Presentation

Chemistry

9th - 12th Grade

Practice Problem

Medium

NGSS
HS-PS1-7, HS-LS1-6

Standards-aligned

Created by

Shane Pulliam

Used 3+ times

FREE Resource

8 Slides • 10 Questions

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Categorize

Options (18)

CH₂O

CH₄

NH₂

C₂H₆O

C₃H₄O₃

Fe₂O₃

Al₂O₃

MgCl₂

C₆H₁₂O₆

C₂H₆

C₄H₁₀

H₂O₂

C₆H₁₂

P₄O₁₀

C₁₂H₂₂O₁₁

N₂H₄

C₈H₁₀N₄O₂

C₂H₄O₂

Place the following chemical formulas in the appropriate category.

Empirical Formula Only
Molecular Formula Only

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Multiple Choice

What is the empirical formula of glucose, C6H12O6?

1

CH2O

2

C6H12O6

3

C2H4O2

4

CHO

6

Multiple Choice

What is the empirical formula of disulfur tetroxide, S2O4?

1

SO2

2

S2O4

3

S6O12

4

SO

7

Multiple Choice

What is the empirical formula of acetic acid, HC2H3O2?

1

CH2O

2

HC2H3O2

3

C2H4O2

4

CHO

8

Multiple Choice

What is the empirical formula of butanoic acid, CH3(CH2)2COOH?

1

C2H4O

2

CH3(CH2)COOH

3

C4H8O2

4

CHO

9

Multiple Choice

What is the empirical formula of glycine, C2H5NO2?

1

CH2NO

2

C2H5NO2

3

C4H10N2O4

4

CHNO

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Fill in the Blank

Determine the empirical formula of a compound that is made up of 30.06% oxygen and 69.94% iron.

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Fill in the Blank

What is the name of the chemical with formula Fe2O3

(
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Fill in the Blank

Determine the empirical formula of a compound that is made up of 39.93% C, 6.73% H and 53.28% O.

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Fill in the Blank

What is the molecular formula of a compound with an empirical formula of CH2O and a molar mass of 60.06 g/mol?

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