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WorksheetsMolar Mass - Mass to Grams to Atoms
Total questions: 55
Worksheet time: 2hrs 25mins
Samar is working on a chemistry project and needs to calculate the mass of one mole of sodium chloride. Which of the following refers to the mass of one mole of substance?
molecular mass
mole constant
molar mass
atomic weight
Ethan is working on a chemistry project and needs to calculate the amount of sodium required. He wonders, what is the molar mass of sodium?
11 amu
23 g/mol
23 amu
11 g/mol
Elijah is working on a chemistry project and needs to know the mass of one mole of aluminum for his experiment. What is the mass?
27 g/mol
27 amu
13 g/mol
13 amu
What is the molar mass of table salt (NaCl)?
116.886 g/mol
35.453 g/mol
22.990 g/mol
58.443 g/mol
What is the molar mass of NaOH?
40 g/mol
38.989 g/mol
23.998 g/mol
57.004 g/mol
Abigail is conducting a science experiment in her lab to calculate the emissions from a car's exhaust. She needs to know the molar mass of CO2 for her calculations. What is the molar mass of CO2?
12 g/mol
16 g/mol
32 g/mol
44 g/mol
How many particles are in a mole?
602
602 million
602 moles
6.02 x 1023
During a science project, Ansh and Ishaan are calculating the molar mass of chlorine gas (Cl2) for their experiment. What is the molar mass they should use?
17 g/mol
35.5 g/mo
71.0 g/mol
89 g/mol
During a science project, Nick is calculating the molar mass of UF6 to understand its properties for a presentation. What is the molar mass of UF6?
101 g/mol
238 g/mol
257 g/mol
352 g/mol
Calculate the molar mass of KOH.
28 g/mol
56 g/mol
84 g/mol
112 g/mol
Calculate the molar mass of CO2.
14 g/mol
28 g/mol
36 g/mol
44 g/mol
Calculate the molar mass of Cu2O.
37 g/mol
45 g/mol
79.5 g/mol
143 g/mol
What is the molar mass of the diatomic element nitrogen (2 nitrogen atoms bonded together)?
7 g/mol
14 g/mol
28 g/mol
Calculate the molar mass of water (H2O).
10 g/mol
17 g/mol
18 g/mol
34 g/mol
Calculate the molar mass for Al(OH)3
78.0 g/mol
72 g/mol
28 g/mol
25 g/mol
Calculate the molar mass of NH4NO2
50 g/mol
60 g/mol
64 g/mol
78 g/mol
What is the molar mass of fluorine gas, F2?
18.998 g/mol
38 g/mol
9 g/mol
18 g/mol
What is the molar mass of AuCl3?
96 g
130 g
232.5 g
303.3 g
What is the definition for Avogadro's number?
number of grams per one mole of a substance
whole number ratio that is a multiple of a chemical formula
simplest, whole number ratio of a chemical formula
6.02 x 10^23 particles per one mole of a substance
Which would have more atoms?
1 mole of Li
1 mole of Au
1 mole of Si
None, all are equal
What is the molar mass of one mole of Nitrogen N2?
14.01 amu
14.01 g
28.02 g
28.02 amu
What is the Molar mass of one mole of Iron (Fe)?
55.93 amu
55.93 g
111.86 amu
111.86 g
What is the rounded molar mass of a mole of one hydrogen atom?
1 amu
2 amu
2 g
1 g
Avagadro's number is
6.022
6.022 x 10-23
6.022 x 23
6.022 x 1023
What is the molar mass of a mole of Carbon Dioxide (CO2)?
12 amu
12 g
44 g
44 amu
What is the Molar mass of the Baking Soda? (NaHCO3)
84 g
84 amu
52 g
52 amu
What is the atomic mass of one atom of Nitrogen?
14 amu
14 g
14 kg
None of these
What is the mass of one hydrogen atom?
1 amu
1 g
2 g
2 amu
What is the mass of sodium atom?
23 g
23 amu
11 amu
11 g
How many Oxygen atoms are in the compound Ba3(PO4)2
4
8
6
3
grams
amu
grams/mole
liters
Calculate the moles in 12.7g of CaF2
0.20 mol
1,000.76 mol
6.14 mol
0.16 mol
111 grams
0.008 grams
98.9 grams
none of the choices
How many moles are in 100.0 g of dinitrogen oxide (N2O)?
2.272 mol N2O
6.25 mol N2O
7.14 mol N2O
44.013 mol N2O
How many grams are in 2.40 mol of sulfur?
9.35 x 10-3 g
77.0 g
616 g
0.0748 g
A mass of 6 g of Carbon contains
1 mole of C
2 moles of C
0.5 moles of C
How many grams is 3.8 moles of Carbon Monoxide?
0.136g
28.01g
106.438g
3.8g
How many moles is 17g of water?
0.94mol
1.05mol
17mol
18.015mol
How many moles is 12.5 x 1023 atoms of an unknown compound?
2.08mol
6.02x1023mol
2.08x1023mol
12.5mol
Which conversions factor would be used to convert moles to atoms
Moles/atoms
atoms/Moles
Which conversion factor would be used to convert liters to moles?
Moles/Liters
Liters/Moles
grams/liters
liters/grams
How many moles of sodium chloride are in a 321.8 g sample?
18810 moles
3.315 x 1024 moles
5.507 moles
4.767 moles
How many atoms are contained in a 456 g sample of carbon dioxide?
10.34 atoms
6.237 x 1024 atoms
1.871 x 1025atoms
2.079 x 1024 atoms
What is the role of the arrow sign in a chemical reaction?
Making sure atom counts on each side are the same.
Separating products and reactants.
Showing which substances were in the container first and which substances were added later.
Showing which substances are solids and which are liquids or gases.
Shivani measures out 6.0 moles of Epsom salt (MgSO4) to put in her bath. How many grams of MgSO4 went in the bath?
3.6 x 1024 g
720 g
0.050 g
340 g
What is the molar mass of table salt (NaCl)? Read all options! Be careful!
58.44 amu
35.45 g/mol
22.99 g/mol
58.44 g/mol
How many grams are in 0.5 moles of magnesium (Mg)?
12.15 grams
24.31 grams
6.08 grams
18.23 grams
How many moles are in 100 grams of potassium (K)?
2.56 moles
50 moles
10 moles
0.5 moles
How many moles are in 25 grams of sodium (Na)?
2.5 moles
1.08 moles
0.5 moles
0.25 moles
How many grams are in 2 moles of carbon (C)?
12.0 grams
24.0 grams
36.0 grams
48.0 grams
What is the molar mass of H2O?
10 g/mol
18 g/mol
20 g/mol
36 g/mol
How many atoms are in 2 moles of helium?
6.02 x 1023
1.204 x 1024
3.01 x 1023
24.08 x 1023
What is the molar mass of one mole of Nitrogen N2?
14.01 amu
14.01 g
28.02 g
28.02 amu
