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WorksheetsMOLE CONCEPT
Total questions: 15
Worksheet time: 15mins
6.02 x 1023 _____.
How many molecules are in 2.00 moles of H2O?
124x1024 molecules of H2O
1.20x1023 molecules of H2O
12.04 x1023 molecules H2O
124
An Avogadro's number of water molecules is equal to all EXCEPT _________.
1 mole of water molecules
2 moles of Hydrogen atoms and 1 mole of oxygen atoms
18 grams of water
18 molecules of water
What is the molar mass of NaCl?
58 g/mol
28 g/mol
12 g/mol
6.02 x 1023
The molar mass of an element is the mass of one ____ of the element, with numbers taken from the mass number on the periodic table.
atom
molecule
mole
gram
Which of these has the greatest volume at the same temperature & pressure?
1 mole CO2 gas
1 mole of N2O4 gas
1 mole of C3H8 gas
They all have the same volume
If you have 2 grams of helium gas at standard temperature & pressure, then you DON'T have
6.02 x 1023 atoms of helium
3.01 x 1023 atoms of helium
a 1/2 mole helium
11.2 L of helium
Which of the following statements regarding the mole is incorrect?
A mole is a counting unit equal to 6.02 x 1023 particles.
The number of particles in a mole is known as Avogadro’s number.
A mole of particles of an element is numerically equal to the atomic mass of the element.
none of the above
How many moles are there in 9 g of water?
2
1
0.5
