Mole Concepts
What is the mole number?
6.02 x 1023
How many moles are in 79.85 g of Fe2O3?
0.5 Moles Fe2O3
How many moles are in 3.75 × 1021 molecules of (NH4)2SO4? (Round to 3 decimal places)
0.006 moles (NH4)2SO4
What is the molar mass of HCl?
36.458 g/mole
120.385 g of C to atoms C
6.03 x1024 atoms C
1 mole of lead (Pb) has this mass in grams
207.2 g
How many grams are in 2.89 moles of BF3 (round to 2 decimal places)
195.95 g BF3
How many molecules are in 3.996 moles of C6H12O6?
2.406 x 1024 molecules C6H12O6
What is the molar mass of H2CO3?
62.024 g/mole
convert 19.587g CaCl2 to molecules
1.06 x1023 molecules CaCl2
1 mole of any element is how many atoms?
6.02x1023
How many moles are in 88.43 g of AgNO3? (Round to 2 decimal places)
0.52 moles AgNO3
How many molecules are in 133.45 moles of SO2?
8.03 x 1025 molecules
What is the molar mass of Na(OH)2
57.004 g/mole
3.25 x 1024 atoms Na to moles Na
5.399 moles Na
If you start with grams but need moles what do you do?
Divide by the molar mass!
How many moles are in 62.54 g of Na2SO4 ? (Round to 2 decimal places)
.44 moles Na2SO4
How do you convert from moles to molecules
Multiply by 6.02 x1023
What is the molar mass of C6H12O6?
180.156 g/mole
2.06 x 1024 molecules of NaCl to grams
199.977 g NaCl
If you start with molecules and need moles, what do you do?
divide by 6.02x1023
How many grams are in 3.5 mol of Ca3(PO4)2? (Round to 2 decimal places)
1085.61 g Ca3(PO4)2
How do you convert from molecules to moles?
Divide by 6.02 x1023
What is the molar mass of Ca3(BN2)4?
275.53 g/mole
8.49 moles of Cu(NO3)2 is how many grams?
1592.33 g Cu(NO3)2