hannahpalmario hannahpalmario
  • 24-05-2018
  • Chemistry
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Help !! Please also explain how you got your answer !!

Help Please also explain how you got your answer class=

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hesmybrother
hesmybrother hesmybrother
  • 24-05-2018
I think it’s a...........
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HunnidBandzWeUp
HunnidBandzWeUp HunnidBandzWeUp
  • 24-05-2018
first you need to find the moles of NO2:

Mr NO2 = 46
Mass NO2 = 14

moles = mass/mr
= 14/46
= 0.304

this value is for a ratio of 4 since there are 4 NO2

there is only 1 O2 therefore we divide by 4
0.304/4 = 0.0761

mass O2 = moles x mr

= 0.0761 x 32 = 2.43
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