Empirical/Molecular Formula Review

Empirical/Molecular Formula Review

11th - 12th Grade

5 Qs

quiz-placeholder

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Empirical/Molecular Formula Review

Empirical/Molecular Formula Review

Assessment

Quiz

Chemistry

11th - 12th Grade

Medium

Created by

Edwin Tranquilino

Used 10+ times

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5 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

10 mins • 1 pt

What is the percent composition by mass of sulfur in the compound MgSO4 (gram formula mass = 120 g/mol)?

20%

27%

46%

53%

2.

MULTIPLE CHOICE QUESTION

10 mins • 1 pt

What is the empirical formula if you have 88.80% copper and 11.20% oxygen?

Cu3O8

CuO4

Cu2O

Cu4O10

3.

MULTIPLE CHOICE QUESTION

10 mins • 1 pt

What is the empirical formula if you have 36.84% nitrogen and 63.16% oxygen?

NO

N2O3

N2O4

N2O5

4.

MULTIPLE CHOICE QUESTION

10 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

10 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