
Molar Mass Review
Authored by SOPHIA WALSH
Chemistry
10th Grade
Used 7+ times

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33 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
A student placed one mole of platinum and one mole of silver on a scale. Which weighs more
Platinum
Silver
They both weigh the same
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Calculate the molar mass of Fe
54.95 g
55.85 g
55.85
54.95
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
To calculate :How many grams are in 3.11 moles of Mg3 (PO3)2 which conversion factor will you multiply 3.11 moles by?
1 mole /6.02 x 1023 atoms
229.94 g/1 mole
6.02 x 10 23 atoms/1 mole
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
How many grams are in 3.11 moles of Mg3 (PO3)2
715g
400g
715
754g
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
1 mole of nonsense is equivalent to how many atoms of nonsense?
6.02 X 1023 atoms of nonsense
75 g of nonsense
0
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
How will you convert the Z atoms to grams?
Multiply Z atoms by the conversion factor 1 mole / molar mass
Multiply Z atoms by the conversion factor 1 mole/6.02 x 1023 molecules x 1 mole/molar mass
Multiply Z atoms by the conversion factor 1 mole/6.02 X 1023 atoms x molar mass/mole
Multiply Z atoms by the conversion factor 1 mole/molar mass x 1 mole /6.02 x 1023 atoms
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Jad is trying to find how many moles are in 3.4 x 1023 molecules of I2 . Which is the correct set up for solving this conversion?
1 mole x 3.4 x 1023 molecules/6.02 x 10 23 x 253.8 g
3.4 x 1023 molecules x 6.02 x 1023/1 mole x 254.8g/1 mole
3.4 x 1023molecules x 1 mole/6.02 x 1023 molecules x 253.8 g/1 mole
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