What is the first step in finding the molar mass of a compound like sodium sulfate?

Molar Mass Calculations and Concepts

Interactive Video
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Chemistry
•
9th - 10th Grade
•
Hard

Emma Peterson
FREE Resource
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6 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Determine the chemical formula of the compound.
Calculate the total mass of the compound.
Look up the atomic masses on the periodic table.
Identify the number of atoms in the compound.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many sodium atoms are present in sodium sulfate (Na2SO4)?
Four
One
Two
Three
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the atomic mass of sulfur used in the calculation of sodium sulfate's molar mass?
16.00 grams per mole
22.99 grams per mole
32.07 grams per mole
35.45 grams per mole
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many oxygen atoms are in the chemical formula of sodium sulfate?
Four
Two
Three
Five
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the total molar mass of sodium sulfate (Na2SO4) as calculated in the video?
120.04 grams per mole
180.04 grams per mole
142.04 grams per mole
160.04 grams per mole
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why might your calculated molar mass differ slightly from the one in the video?
The chemical formula might be incorrect.
Different periodic tables may round atomic masses differently.
The units of measurement might be different.
The number of atoms in the compound might change.
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