Question

a) How many moles of dioxygen are present in 64g of dioxygen?
(Molar mass of dioxygen is 32).
b) The following data were obtained when dinitrogen (N2) and dioxygen (02) react
together to form different compounds.
Mass of N2
Mass of O2
14 g
14 g
28 g
28 g
16 g
32 g
32 g
80 g​

Answer 1

Answer:

a)mass of dioxygen= 32

• moles of dioxygen=64/32=2moles
• b)
• mass of N=14
• mass of N2=2*14=28g
• mass of O=16
• mass of O2=2*16=32g