The density of a certain gas is 1.98gdm\(^{-3}\) at s.t.p. What is the molecular mass of the gas?

Cunnyguy

3 years ago

Using d formula 👇
Density = mass/volume
∴ 1.98 = molecular mass/22.4
Make molecular mass d subject of d formula 👇
molecular mass = 1.98 * 22.4
= 44.352
≅ 44.0g(2 nearest whole number)
Note:I rounded up 2 nearest whole number inorder 2 make it fit d ansa in d options

Onyi_T

2 years ago

22.4 is the s.t.p measured in dm³

johnny745

1 year ago

22.4×1.98 = 44.35

queentessie

3 months ago

is mass the same as molecular mass ??