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Papessa [141]
2 years ago
8

This is due today so please help me

Chemistry
2 answers:
Nonamiya [84]2 years ago
7 0
B north to south. Hope this helps
tankabanditka [31]2 years ago
5 0

Answer:

b north to south

Explanation:

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AleksandrR [38]
Molar mass O2 = 31.99 g/mol

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Moles ratio:

<span>C3H8 + 5 O2 = 3 CO2 + 4 H2O 
</span>
5 x 44.01 g O2 ---------------- 3 x 44.01 g CO2
( mass of O2) ------------------ 37.15 g CO2

mass of O2 = 37.15 x 5 x 44.01/ 3 x 44.01

mass of O2 = 8174.8575 / 132.03

mass of O2 = 61.916 g 

Therefore:

1 mole O2 ----------------- 31.99 g
moles O2 -------------------- 61.916

moles O2 = 61.916 x 1 / 31.99

moles = 61.916 / 31.99 => 1.935 moles of O2
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