
Mole Concept
Authored by Brandon Osborne
Chemistry
10th - 12th Grade
NGSS covered
Used 7+ times

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37 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the mass of 6.02 x 1023 platinum atoms? Round to the nearest hundredths place.
30.97 g
106.42 g
140.91 g
195.09 g
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A student needs 65.0 g of copper(II) chloride for an experiment. How many atoms of copper is this?
2.91 x 10^23 atoms
3.91 x 10^25 atoms
2.35 x 10^23 atoms
4.70 x 10^23 atoms
Tags
NGSS.HS-PS1-7
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The molecular formula for a carbon and hydrogen compound is C8H18. What is the empirical formula?
C8H18
C9H4
C18H8
C4H9
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If one Monster energy drink contains 0.16 g of caffeine, how many moles of caffeine do we consume when we drink 1 can? The chemical formula for caffeine is C8H10N4O2.
194.19 moles
1.07 moles
0.00082 moles
1213.69 moles
Tags
NGSS.HS-PS1-7
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following statements regarding the mole is incorrect?
A mole is a counting unit equal to 6.02 x 1023 particles.
The number of particles in a mole is known as Avogadro’s number.
A mole of particles of an element is numerically equal to the atomic mass of the element.
none of the above
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mylanta, a common antacid, contains magnesium hydroxide, Mg(OH)2. How many moles of magnesium hydroxide are in 75.0 g of magnesium hydroxide?
0.551 moles
0.778 moles
1.29 moles
1.82 moles
Tags
NGSS.HS-PS1-7
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following compounds is correctly matched with its empirical formula?
Dihydrogen dioxide - H2O2
Hydrogen dioxide - H2O
Tetrahydrogen dioxide - H4O2
Dihydrogen dioxide - HO
Tags
NGSS.MS-PS1-1
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