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Percent Composition and Molar Mass of NiCl2

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

Olivia Brooks
FREE Resource
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8 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Determining the boiling point of NiCl2
Finding the percent composition by mass of elements in NiCl2
Calculating the density of NiCl2
Explaining the chemical bonding in NiCl2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the molar mass of NiCl2?
35.45 g/mol
100.00 g/mol
129.59 g/mol
58.69 g/mol
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many nickel atoms are present in NiCl2?
Three
Four
Two
One
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the percent composition of nickel in NiCl2?
54.67%
35.45%
58.69%
45.29%
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the molar mass of chlorine used in the calculation?
58.69 g/mol
129.59 g/mol
100.00 g/mol
35.45 g/mol
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many chlorine atoms are present in NiCl2?
Four
Three
Two
One
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the percent composition of chlorine in NiCl2?
58.69%
45.29%
54.67%
35.45%
8.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the final step in finding the percent composition of an element in a compound?
Adding the atomic masses of all elements
Subtracting the atomic mass from the molar mass
Multiplying the atomic mass by the number of atoms
Dividing the atomic mass by the molar mass and multiplying by 100
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