WorksheetsMolar Conversions Two Step
Total questions: 15
Worksheet time: 4hrs 45mins
Grace, Anika, and Samuel are on a science adventure! They stumbled upon a magical water fountain that spews out exactly 821.3 g of water. Can you help them figure out how many water molecules are in that?
45.58 molecules
8.232 x 1025 molecules
8.909 x 1027 molecules
2.744 x 1025 molecules
Imagine this, Michael, Avery, and Aria are on a space adventure and they come across a planet made entirely of Zn! They estimate the planet to have about 4.98 x 1024 atoms of Zn. Can you guess the mass of this Zn planet?
541 g
8.27 g
.122 g
4.59 x 1046 g
Benjamin, William, and Hannah are having a science competition! They found a 321.8 g sample of sodium chloride. Can you help them figure out how many moles are in their sample?
18810 moles
3.315 x 1024 moles
5.507 moles
4.767 moles
Avery, Aiden, and Maya are having a science competition! They found a 25.69 g sample of calcium chloride. Can you help them figure out how many formula units are in their sample?
1.394 x 1023 F.U.'s
2851 F.U.'s
.2315 F.U.'s
3.845 x 1025 F.U.'s
Imagine Kai, Michael, and David are in a chemistry lab. Kai has 86.235 g of diphosphorus pentaoxide and he wants to convert it to moles. Can you help him figure out how many moles he has?
12240 moles
1.8747 moles
.608 moles
.60755 moles
Zoe, William, and Abigail are on a space mission and they stumble upon a planet made entirely of SrCl2. They estimate that there are about 9.76 x 1022 formula units of SrCl2 on the planet. Can you help them figure out the mass of SrCl2 they found?
.1622 g
25.7 g
20.0 g
.3589 g
Lily, Kai, and Daniel are on a science adventure! They stumbled upon a magical land where they found 3.01 x 1022 atoms of magnesium. Can you help them figure out how many moles this would be?
0.05 moles
1.81 x 1046 moles
5.00 x 1021 moles
5 moles
Arjun, Ethan, and Abigail are having a friendly competition to see who can convert grams to molecules the fastest. How many steps are involved in this conversion process?
1
2
3
4
Check all that apply: These are the steps needed to go from L of N2 to L of NH3 in the following reaction:
N2 + 3H2 --> 2NH3
Go from grams N2 to moles N2
Go from L N2 to moles N2
Go from moles N2 to L NH3
Go from moles N2 to moles NH3
Go from moles NH3 to L NH3
How many moles does 65 L of CO2 gas contain?
2.9 Moles CO2
29 Moles CO2
1.9 Moles CO2
39 Moles CO2
Calculate the volume of 3.44 moles methane, CH4 gas at STP
77.06 L CH4
62.1 L CH4
7.67 L CH4
6.02 L CH4
When converting volume to moles, what conversion factor is needed?
22.4 grams = 1 mole
22.4 L = 1 mole
22.4 moles = 1 Liter
6.02 L = 1 mole
In Chemistry, STP stands for ___?
Scientifically Treated Petroleum
Standard Temperature and Pressure
Stone Temple Pilots
Segmentation, Targeting, & Positioning
