Calculating Formula Mass
Authored by Charles Martinez
Chemistry
9th Grade
Used 2+ times
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15 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The relative formula mass (RFM) of a compound is equal to the sum of its
Mass numbers
Atomic numbers
Oxidation numbers
Valence electrons
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the atomic mass number of magnesium?
2
4
12
24
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
What is the relative mass number of sodium?
11
23
46
64
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
What is the relative formula mass of fluorine gas, F2?
19
38
9
18
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
What is the relative formula mass of NaOH?
Na= 23
O= 16
H= 1
20
39
40
45
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
What is the relative formula mass of CO2?
C= 12
O= 16
12
16
32
44
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
The formula of a compound is M(OH)2. Given that the relative formula mass of the compound is 98, calculate the relative mass number of of M.
32
64
81
94
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