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WorksheetsMole calculation revision
Total questions: 12
Worksheet time: 32mins
Which 2 things does the atomic mass on the periodic table represent?
Electrons and protons
Particles in the nucleus and electrons
Particles in the nucleus and the mass of 1 mole of that element
The mass of one mole of that element, and how long it takes to boil
How many molecules are there in 31.8 moles of water? (H2O has a molar mass of 18.0 g/mol)
572 g
1.91 x 1025 molecules
5.28x 10-25 molecules
1.77 g
Vitamin C, also known as ascorbic acid, is water soluble and cannot be produced by the human body. Each day, a person's diet should include a source of Vitamin C, such as orange juice. Ascorbic acid has a molecular formula of C6H8O6 and a molar mass of 176 grams per mole.
Determine the number of moles of vitamin C in an orange that contains 0.171 grams of vitamin C.
30.1 moles
1030 moles
.000971 moles
.0001 mole
Calculate the number of moles in 55g of copper chloride (CuCl₂)
0.41 moles
0.82 moles
1.6 moles
.20 moles
What is the mass of 0.75 moles of (NH4)3PO4?
0.0044 g
91 g
110 g
74 g
How many molecules are present in 135 g of Teflon C2F4
6.13 x 1023 molecules
5.13 x 1023 molecules
8.13 x 10 23 molecules
9.13 x 1023 molecules
What is the molar mass of calcium hydroxide, Ca(OH)2?
74.1 g/mole
57.1 g/mole
58.1 g/mole
57.1 u
