Relative Formula Mass (Mr)

Relative Formula Mass (Mr)
What is the Mr (Relative Formula Mass) of carbon dioxide?
Formula for carbon dioxide CO

Element Mass Number (Ar)

Number of atoms in compound

Relative atomic mass of atoms(s) in compound

Relative Formula Mass (Mr) of carbon dioxide (CO2) is....

Calculate the Relative Formula Mass (Mr) of these compounds

O2
NaCl
H2SO4
CaCO3
H2O
Ca(OH)2
NH3
HNO3
MgBr2

Calculate the Relative Formula Mass (Mr) of these compounds
O2
NaCl
H2SO4
CaCO3
H2O
Ca(OH)2
NH3
HNO3
MgBr2
(2 x 1) + 16
= 18
2 x 16
= 32
23 + 35.5
= 58.5
(2x1) + 32 + (4 x 16)
= 98
40 + 12 (3 x 16)
= 100
40 + (1+16)+(1+16)
= 74
14 + (3 x 1)
= 17
1 + 14 + (3x16)
= 63
24 + (2 x 80)
= 184