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Mole Conversions, Empirical and Molecular

Authored by Jennifer McGarvie

Science

9th - 12th Grade

NGSS covered

Used 9+ times

Mole Conversions, Empirical and Molecular
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18 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Which pair has the same empirical formula?

NaCrO4 and Na2Cr2O7
C2H4O2 and C6H12O6
C3H6O3 and C2H6O2
CH4 and C2H6

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

A formula with the lowest whole # ratio of elements in a compound is called

Molecular Formula
Chemical Formula
Empirical Formula 
Distance Formula

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A chemical formula that shows the actual # and kinds of atoms present in one molecule of a compound is called_________

ionic formula
covalent formula
empirical formula
molecular formula

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

How many molecules are in 2.5 mol of NaCl?

1.51x1023
146
4.15
1.51x1024

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

How many atoms of carbon are in 6.00g of carbon?

1.20x1024atoms C
6.02x1023atoms C
3.01x1023atoms C
1.50x1023atoms C

Tags

NGSS.HS-PS1-7

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

How many grams are in 1.2 x 1024 molecules of CO?

28 grams
56 grams
6.02 grams
1.2 grams

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the units for molar mass?

grams
amu
grams/mole
liters

Tags

NGSS.HS-PS1-7

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