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100

How many grams in 60.2 x 10^23 atoms C?

12.01 g C

100
What is the mass (g) of 1.00 mol Li?
6.94 g Li
100
How many moles in 2.65 g Fe?
0.0474 mol Fe
100

What is Avogadro's Number?

6.022 x 10^23

100

How is the mass in grams of the element converted to amount in moles?

Divide by the molar mass

200
How many moles in 3.011 x 10 ^23 atoms Mg?
0.5000 mol Mg
200
How many atoms in 6.755 mol Pb?
4.068 x 10^23 atoms Pb
200
How many grams in 6.50 moles Cu
413 g Cu
200

What 3 things do you need to have on your paper when you answer a conversion question

Your answer, your work, and UNITS

200

How is the mass in grams of the element converted to number of atoms?

Divided by molar mass, then multiply by Avogadro's Number

300
How many grams in 10.5 x 10^23 atoms Mg?
6.05 g Mg
300
How many moles in 0.00750 g Ag? (in scientific notation)
6.95 x 10^-5 mol Ag
300
How many moles are in 0.535 g Zn?
0.00818 mol Zn
300
What is the molar mass of Iridium?
192.2 g/mol
300

Where do I find the mass of a mole of an element?

The amu of the element found on the periodic table

400

How many atoms in 0.250 mol S?

1.51 x 10^23 atoms S

400
How many mores in 2.25 x 10^25 atoms Zn?
37.4 mol Zn
400
How many grams in 4.50 x 10^12 atoms Cl?
2.65 x 10^-10 g Cl
400
What is the molar mass of Xenon?
131.3 g/mol
400

Calculate the percent composition of Mg in MgCl2

25.529%

500
How many atoms in 0.02550 g Pt?
7.872 x 10^19 atoms Pt
500
How many moles in 150 g S?
4.7 mol S
500
How many grams in 8.42 x 10 atoms Br?
0.00112 g Br
500

How many particles are in 1 mol of hamsters?

6.022x10^23

500

What is the percent composition of C in CH3

80%