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WorksheetsThe Mole Chemistry
Total questions: 15
Worksheet time: 15mins
How many molecules are there in 31.8 moles of water?
5.28 x 10-23 molecules
1.91 x 1025 molecules
5.28x 10-25
1.91 x 1022
Determine the mass of 4.20 moles of C6H12
353 g
0.0499 g
337 g
2.53 x 1024 g
Which of the following dimensional analysis setups will correctly convert 27.76 g of Li to atoms of Li?
A
B
C
D
Calculate the number of atoms in 0.0340 g Zn.
5.20 x 10-4 atoms Zn
3.13 x 1023 atoms Zn
3.13 x 1020 atoms Zn
2.05 x 1022 atoms Zn
Which of the following dimensional analysis setups will correctly convert 4.00x1023atoms of cobalt to moles of cobalt? How many moles of colbalt are there?
setup B : 0.664 mol Co
setup A: 2.41x1047mol Co
setup A : 0.664 mol Co
setup B: 2.41x1047mol Co
How many formula units are there in 2.45 moles potassium chloride?
4.07 x 10-24
1.47 x 1024
1.47
4.07
Which reactant is the limiting reagent and why?
Hydrogen is the limiting reagent because two moles of hydrogen is required for every one mole of oxygen to produce two water.
Oxygen is the limiting reagent because two moles of hydrogen is required for every one mole of oxygen to produce two water.
How many atoms of carbon are in 6.00g of carbon?
20x1024atoms C
6.02x1023atoms C
3.01x1023atoms C
1.50x1023atoms C
How many molecules are in 2.5 mol of NaCl?
51x1023
146
4.15
1.51x1024
Avogadro's number of atoms/moles/formula units is equal to one_____
kilogram
gram
kelvin
mole
Mole ratios are obtained from the
balanced chemical equation
periodic table
molar mass
2Al + 3H2SO4 -> Al2(SO4)3 + 3H2
How many grams of aluminum sulfate would be formed if 250g H2SO4 completely reacted with aluminum?
0.85 g
290 g
450 g
870 g
What is the mass of 2.00 moles of water (H2O)?
18 g
36 g
54 g
72 g
How many atoms are there in 3.00 moles of carbon?
1.81 x 10^24 atoms
3.61 x 10^24 atoms
6.02 x 10^23 atoms
9.03 x 10^23 atoms
What is the molar mass of sodium chloride (NaCl)?
58.44 g/mol
22.99 g/mol
35.45 g/mol
60.00 g/mol
