Chem Spring BM Prep
Authored by Samantha Murphy
Chemistry
10th Grade
DOK Level 2: Skill/Concept covered
Used 3+ times
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22 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the gram formula mass of H2O2, in grams per mole?
34.02
30.02
36.02
32.02
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which substance has the greatest molecular mass?
CF4
NO
I2
H2O2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the formula mass of potassium chloride, KCl?
32.3 amu
74.6 amu
149.2 amu
154.5 amu
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The gram atomic mass of oxygen is 16.0 grams per mole. How many atoms of oxygen does this mass represent?
16.0
32.0
6.02 x 10^23
2
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which sample contains a total of atoms?
0.50 mole of HCl
0.75 mole of H2O
1.5 moles of Cu
1.5 moles of H2
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the total number of molecules of SO2 in a 0.10-mole sample of SO2?
6.0 x 10^22
6.0 x 10^24
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The percent composition by mass of nitrogen in NH4OH (gram formula mass = 35 grams/mole) is equal to which of the following?
(35/4) x 100
(4/35) x 100
(35/14) x 100
(14/35) x 100
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