WorksheetsChemical Calculations 1 (Higher)
Total questions: 10
Worksheet time: 10mins
Name
Class
Date
1.
Balance the equation
CH4 + (a) O2 --> (b) H2O + CO2
Choose from the below words
2
1
3
4
2.
Calculate the formula mass of NH3
N=14
H=1
(a)
3.
Calculate the formula mass of Al2O3
Al = 27
O = 16
(a)
4.
Calculate the formula mass of Ca(OH)2
Ca = 40
O = 16
H = 1
(a)
5.
What is Avagadro's constant?
a)
6.02x10-23
b)
6.02x1023
c)
2.06x1023
d)
2.06x10-23
e)
0.602x1023
6.
How much would 1 mole of H2O weigh in g?
H = 1
O = 16
(a)
7.
How much would 0.6 moles of H2O weigh in g?
H = 1
O = 16
(a)
8.
How much would 3 moles of HNO3 weigh in g?
H = 1
N = 14
O = 16
(a)
9.
How many moles of CO2 in 132g
C = O
O = 16
(a)
10.
How many moles of H2SO4 in 70g
H = 1
O = 16
S = 32
(a)
100 %
