Mole Conversions & Atomic Review

Atoms

100

How many grams in 60.2 x 10²³ atoms C?

12.01 g C

200

How many moles in 3.011 x 10²³ atoms Mg?

0.5000 mol Mg

300

How many grams in 10.5 x 10²³ atoms Mg?

6.05 g Mg

400

How many atoms in 0.250 mol SO₂?

1.51 x 10²³ atoms S

500

How many formula units in 0.02550 g PtCl₄?

4.56 x 10¹⁹ formula units

Moles

100

What is the mass (g) of 1.00 mol Li?

6.94 g Li

200

How many atoms in 6.755 mol Pb?

4.068 x 10^23 atoms Pb

300

How many moles in 0.00750 g Ag? (in scientific notation)

6.95 x 10^-5 mol Ag

400

How many mores in 2.25 x 10²⁵ atoms ZnCl₂?

12.45 moles

500

How many moles in 150 g K₂CO₃?

1.09 moles

Grams

100

How many moles in 2.65 g Fe?

0.0474 mol Fe

200

How many grams in 6.50 moles Cu

413 g Cu

300

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0.00818 mol Zn

400

How many grams in 4.50 x 10¹² atoms Cl?

2.65 x 10^-10 g Cl

500

How many grams in 8.42 x 10²⁴ atoms NaBr?

1439 g

Random 1

100

What is Avogadro's Number?

6.02 x 10^23

200

What does amu stand for?

atomic mass units

300

What is the molar mass of Iridium?

192.2 g/mol

400

What is the molar mass of XeF₄?

207.28 g/mol

500

What is the molar mass of aluminum sulfate Al₂(SO₄)₃

342.132 g/mol

Random 2

100

What is the atomic number of Yttrium?

39

200

How many seconds in 2.5 days?

216,000

300

How many electrons are in an ion of silver with a +1 charge?

46

400

Write the nuclear symbol for Calcium-40 with a +2 charge.

40 20 Ca +2

500

How many neutrons are in Uranium-235?

143 neutrons