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How many moles of O atoms are present in 88 g of CO2 ?

Tapan bapat , 11 Years ago

Grade 11

5 Answers

Ruchi Shaw

Moles = mass / molar mass

Molar mass of CO2 is 44 and given mass of CO2 is 88 gm,

So no. of moles come out to be 2.

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Ruchi Shaw

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Last Activity: 11 Years ago

Vimlendra Singh

i think 4 moles of O

Last Activity: 11 Years ago

T C YASHWANTH

total mass co2 is 44 mass of given co2 is 88 in such a way nom of moles we get is 2.

Last Activity: 11 Years ago

Tapan bapat

CO2 - ATOMIC MASS - 12 + 2 x 16 = 44 . HENCE UNDER - 1 MOLE - I.E UNDER 44 gms - - no of oxygen items are - 02 nos. HENCE - UNDER 44 GMS --- NO OF MOLES OF O ITEM - 2 ( I.E O2) THEREFORE - UNDER 88 GMS - 2 x 2 i.e. 4 moles . IS THE SAID JUSTIFICATION OK.

Last Activity: 11 Years ago

Aman Kumar Aanand

Given mass of CO2 = 88g

Atomic mass of CO2= 12+16×2= 44g

So no of moles of CO2 in 44g of atomic mass= 88/44= 2 moles

Then no of moles of oxygen in 44g of CO2 = given mass of O2 in CO2/atomic mass of O2

16×2/16= 2 moles of O2

And hence, no. Of moles of 02 in 88g of CO2=( 2×88/44) moles= 4 moles of oxygen

Last Activity: 4 Years ago

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