AP Chemistry 1.1 assessment
Authored by Peter Spiessbach
Chemistry
11th Grade
Used 19+ times
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6 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
How many molecules of water are there in a 36.0 g sample of water?
1.20 x 10^24
2.00 x 10^23
3.01 x 10^23
6.02 x 10^23
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
How many ATOMS are present in a 36 g sample of water?
1.2 x 10^24
2.4 x 10^24
3.6 x 10^24
4.8 x 10^24
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
If 0.273 moles of an unknown gas has a mass of 12g, find the molar mass of this substance.
44 g/mol
32 g/mol
22 g/mol
12 g/mol
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
What is the mass of one molecule of a substance that has a molar mass of 44 g/mol?
7.31 E -23 g
3.31 E -23 g
44 g
1.4 E -22 g
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
If 1.23 moles of an unknown salt has a mass of 91.7g, find the formula mass of this substance.
74.6 g/mol
91.7 g/mol
111.5 g/mol
123.4 g/mol
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the mass of one formula unit of the substance with a formula mass of 74.47 g/mol?
2.438 E -22 g
1.238 E -22 g
74.47 g
74.47 E 23 g
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