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Worksheets1 & 2 Step Mole Conversion Problems
Total questions: 56
Worksheet time: 3hrs 48mins
What is the mass of one mole of silver?
32.06 g
107.87 g
14.01 g
22.99 g
48.86 g of cobalt is equal to how many moles of cobalt?
2879 moles
8.291 moles
.8291 moles
.829 moles
How many molecules of water are in a 821.3 g sample?
45.58 molecules
8.232 x 1025 molecules
8.909 x 1027 molecules
2.744 x 1025 molecules
What is the mass of 4.98 x 1024 atoms of Zn?
541 g
8.27 g
.122 g
4.59 x 1046 g
How many moles of sodium chloride are in a 321.8 g sample?
18810 moles
3.315 x 1024 moles
5.507 moles
4.767 moles
Convert 86.235 g of P2O5 to moles.
12240 moles
1.8747 moles
.608 moles
.60755 moles
how many atoms are contained in a 456 g sample of carbon dioxide?
10.34 atoms
6.237 x 1024 atoms
1.871 x 1025atoms
2.079 x 1024 atoms
A sample of AlCl3 contains a total of 4.515 x 1027 atoms of chlorine. What must be the mass of this sample?
2.500 x 105 g
1.000 x 106 g
18.75 g
3.333 x 105 g
How many moles are in 15 grams of Lithium?
2.14
0.47
105
7
How many grams are in 2.4 moles of Sulfur?
76.8
0.075
13.3
32
Shivani measures out 6.0 moles of epsom salt (MgSO4) to put in her bath. How many grams of MgSO4 went in the bath?
3.6 x 1024 g
722 g
0.050 g
340 g
5.28 x 10-23
1.91 x 1025
5.28x 10-25
1.91 x 1022
Determine the mass of 4.20 moles of C6H12
353 g
0.0499 g
337 g
2.53 x 1024 g
How many grams are in 1.2 moles of neon?
0.059 grams
7.2 x 1023 grams
2.0 x 10-24 grams
24.2 grams
0.05 moles
1.81 x 1046 moles
5.00 x 1021 moles
5 moles
111 grams
0.008 grams
98.78 grams
none of the choices
48.86 g of cobalt is equal to how many moles of cobalt?
2879 moles
8.29 moles
0.829 moles
2.829 moles
44.8 L
22.4 L
16.8 L
20.4 L
How many moles are in a 18 L tank of nitrogen gas?
8 moles
1 mole
0.8 moles
0.5 moles
How many moles are in 89 liters of water vapor?
1993.6 moles
4.93 moles
1.478 moles
3.97 moles
4.73 x 10-4 moles
1.72 x 104 moles
1.72 x 10-42 moles
4.73 x 104 moles
What is the mass of 2.75 moles of silver (Ag) ?
1.66 x 1024 g
296 g
0.0255 g
4.57 x 10-24 g
How many moles would a 3.9 g sample of calcium (Ca) contain?
156 moles
2.35 x 1024 moles
6.48 x 10-24 moles
0.097 moles
What is the mass of 3.5 moles NaOH ?
0.0250 g
140. g
5.81 x 10-24 g
2.11 x 1024 g
A 8.92 x 1025 atom sample of Na has how many moles in it?
5.36 x 1049 moles
2.05 x 1027 moles
147 moles
3.87 moles
A beaker contains 3.0 moles of copper. How many grams of copper are in the beaker?
190.7 g
21.2 g
0.047 g
86.3 g
A chemist places 2.50 g of iron on a scale. How many moles of iron are on the scale?
139.6 moles
22.3 moles
0.764 moles
0.045 moles
To melt the ice, Cindy throws 455 g of calcium chloride, CaCl2 on her sidewalk. How many moles of CaCl2 did she throw?
50,500 moles
4.10 moles
0.244 moles
111 moles
A recipe calls for 12 g of baking soda, NaHCO3. How many moles of NaHCO3 go into the recipe?
0.058 moles
7.0 moles
0.14 moles
3.4 moles
The recommended daily allowance for sodium is 2.3 g. How many moles of sodium should you get per day?
0.10 moles
0.075 moles
0.23 moles
0.0046 moles
Eating a quarter pound hamburger will provide you with 44% of the selenium that you need in a day.
If that hamburger contains 3.1 x 10-7 moles (or 0.000 000 31 moles) of selenium, how many grams of selenium are in that burger?
0.000 000 003 9 g (or 3.9 x 10-9 g)
0.000 000 58 g (or 5.8 x 10-7 g)
0.000 024 g (or 2.4 x 10-5 g)
0.007 80 g (or 7.8 x 10-3 g)
2.5 moles of helium gas will have what volume?
9 L
56 L
27 L
72 L
An average breath contains 0.5 L of gas. How many moles of air are pushed out with each breath?
0.022 moles
22 moles
0.22 moles
2.2 moles
Breathing in sulfur hexafluoride will make your voice sound much deeper. How many liters of SF6 will you need to breathe in to get 0.033 moles inside you?
0.062 L
0.74 L
1.35 L
2.26 L
You can buy dry ice (solid CO2) for about $2 a pound. If you bought 454 g of dry ice, how many moles of CO2 did you purchase?
103 moles
10.3 moles
1.03 moles
0.103 moles
Fun Fact: some people think that air is a synonym for oxygen, but it is actually 78% nitrogen and only 21% oxygen.
If you have a large balloon filled with 6.0 L of nitrogen, how many moles of N2 are in that balloon?
0.51 moles
0.44 moles
0.27 moles
0.19 moles
An antique neon sign contains 1.5 g of neon. How many moles of neon are in the sign?
0.074 moles
0.056 moles
0.083 moles
0.062 moles
Potassium bitartrate or Cream of Tartar (KC4H5O6) has a molar mass of 188.2 g. If you have 0.025 moles of it, what mass of Cream of Tartar do you have?
1.9 g
2.6 g
3.8 g
4.7 g
