karla18 karla18

10-03-2016
Chemistry

contestada

convert 72g of O2 to moles

Respuesta :

10-03-2016

moles = mass / molar mass
molar mass of O2 is 32
therefore moles = 72/32
= 2.25 moles

Answer Link

Divyankasc Divyankasc

10-03-2016

Number of moles = Given mass/molar mass
Given mass : 72 gm
Molar mass of oxygen gas = 16×2 = 32 gm

Therefore, number of moles = 72/32 = 2.25

Answer Link

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