# Moles

## Quiz by Mrs E Laxton

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15 questions
• Q1
6.022 x 10^23
3.1415
2.718
9.80665
30s
• Q2
Which of the following is a unit used to measure the amount of substance?
Kilogram
Mole
Second
Meter
30s
• Q3
What is the molar mass of carbon (C)?
12.01 g/mol
16.00 g/mol
22.99 g/mol
1.008 g/mol
30s
• Q4
What is the mole ratio of hydrogen to oxygen in water (H2O)?
3:1
1:2
2:1
1:1
30s
• Q5
What is the molar mass of oxygen (O)?
12.01 g/mol
16.00 g/mol
1.008 g/mol
22.99 g/mol
30s
• Q6
How many moles of carbon dioxide (CO2) are present in 44 grams of carbon dioxide?
3 moles
0.5 moles
2 moles
1 mole
30s
• Q7
What is the formula for calculating moles?
moles = pressure × volume
moles = mass / molar mass
moles = volume × molarity
moles = concentration / volume
30s
• Q8
What is the mole ratio of hydrogen to nitrogen in ammonia (NH3)?
2:1
1:3
3:1
1:1
30s
• Q9
What is the mass of 0.5 moles of water (H2O) if the molar mass is approximately 18 g/mol?
9 g
36 g
4.5 g
18 g
30s
• Q10
If 3 moles of sodium chloride (NaCl) have a mass of 174.6 g, what is the molar mass?
58.4 g/mol
58.2 g/mol
58.6 g/mol
57.9 g/mol
30s
• Q11
How many moles are in 50 grams of Water (H2O)? (Given: Molar mass of H = 1 g/mol and O = 16 g/mol)
2.50 moles
1.56 moles
2.78 moles
3.12 moles
30s
• Q12
How many moles are there in 60g of Carbon (C)? (Given: Molar mass of C = 12 g/mol)
3 moles
5 moles
4 moles
2 moles
30s
• Q13
What is the mass in grams of 3 moles of oxygen gas (O2)? (Given: Molar mass of O = 16 g/mol)
32 grams
48 grams
64 grams
96 grams
30s
• Q14
What is the mass in grams of 5 moles of Nitrogen gas (N2)? (Given: Molar mass of N = 14 g/mol)
120 grams
90 grams
140 grams
70 grams
30s
• Q15
How many moles are in 98 grams of Sulfuric acid (H2SO4)? (Given: Molar mass of H = 1 g/mol, S = 32 g/mol and O = 16 g/mol)
0.5 mole
1.5 moles
1 mole
2 moles
30s

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