WorksheetsMolar Mass and Moles Practice
Total questions: 24
Worksheet time: 2hrs 0mins
What is the definition of molar mass?
number of grams in 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
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 1023 particles per one mole of a substance
Calculate the molar mass of KOH.
28 g/mol
56 g/mol
84 g/mol
112 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
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
How many moles are in 98.3 g of aluminum hydroxide Al(OH)3?
0.794 mol
1.26 mol
2.23 mol
7.67x103 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 Cl2?
17 g/mol
35.5 g/mo;
71.0 g/mol
89 g/mol
Calculate the molar mass of Cu2O.
37 g/mol
45 g/mol
79.5 g/mol
143 g/mol
What equation do we use to solve for THE NUMBER OF MOLES when provided a given mass?
m = n/M
n = m/M
m = n x M
n = m + M
What equation do we use to solve for THE MASS when provided the number of moles?
m = n/M
n = m/M
m = n x M
n = m + M
What tool should we use to identify the Molar Mass of elements and compounds?
Your brain
The Periodic Table
The internet
A friend
