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WorksheetsMolar Relationship Practice
Total questions: 10
Worksheet time: 23mins
What is the mass, in grams, of 4.725 mole of aluminum oxide Al2O3?{Al = 27, O = 16}
964 g
482 g
1928 g
How many moles of iron (III) oxide are contained in 276 g of pure Fe2O3? {Fe = 56, O = 16}
0.57 moles
1.71 moles
3.42 moles
states that “equal volumes of gases at the same temperature and pressure contain equal numbers of particles”.
Avogadro's hypothesis
Newton's hypothesis
Bohr's hypothesis
Standard temperature and pressure (STP) mean
A temperature of 0°C and a pressure of 101.3 kPa, or 1 atmosphere (atm).
A temperature of 100°C and a pressure of 101.3 kPa, or 1 atmosphere (atm).
A temperature of 0°K and a pressure of 10 atmosphere (atm).
At STP, 1 mol, or representative particles, of any gas occupies a volume of......................
24.4 L
44.2 L
22.4 L.
The quantity, 22.4 L, is called the ........................ of a gas.
molar volume
molar mass
Atomic volume
Determine the volume, in liters, of 1.2 mole SO2 gas at STP.
13 L
26 L
6.5 L
Different gases have different densities
True
False
Usually the density of a gas is measured in grams per liter (g/L) and at a specific temperature
True
False
The density of a gaseous compound is found to be 0.982 g/L at STP. What is the molar mass of the compound?
22
44
33
