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Understanding Avogadro's Number

Authored by Remy Chantengco

Science

10th Grade

NGSS covered

Used 1+ times

Understanding Avogadro's Number
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15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Calculate the number of molecules in 2 moles of water ( H2OH_2O ) using Avogadro's number.

1.204×10241.204 \times 10^{24} molecules

6.022×10236.022 \times 10^{23} molecules

3.011×10233.011 \times 10^{23} molecules

1.204×10231.204 \times 10^{23} molecules

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If you have 3 moles of carbon dioxide ( CO2CO_2 ), how many oxygen atoms do you have?

3.011×10233.011 \times 10^{23} atoms

1.806×10241.806 \times 10^{24} atoms

6.022×10236.022 \times 10^{23} atoms

3.612×10243.612 \times 10^{24} atoms

Tags

NGSS.MS-PS1-1

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many moles of sodium chloride ( NaClNaCl ) are present in 1.204×10241.204 \times 10^{24} formula units?

1 mole

2 moles

0.5 moles

3 moles

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Determine the number of atoms in 0.5 moles of aluminum ( AlAl ).

3.011×10233.011 \times 10^{23} atoms

6.022×10236.022 \times 10^{23} atoms

1.204×10241.204 \times 10^{24} atoms

1.505×10231.505 \times 10^{23} atoms

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many moles of hydrogen gas ( H2H_2 ) are there in 1.204×10241.204 \times 10^{24} molecules?

1 mole

2 moles

0.5 moles

3 moles

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If you have 4 moles of glucose ( C6H12O6C_6H_{12}O_6 ), how many carbon atoms do you have?

1.204×10241.204 \times 10^{24} atoms

2.409×10242.409 \times 10^{24} atoms

6.022×10236.022 \times 10^{23} atoms

4.813×10244.813 \times 10^{24} atoms

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Calculate the number of formula units in 0.25 moles of calcium carbonate ( CaCO3CaCO_3 ).

1.505×10231.505 \times 10^{23} formula units

3.011×10233.011 \times 10^{23} formula units

6.022×10236.022 \times 10^{23} formula units

7.528×10237.528 \times 10^{23} formula units

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