mass of CH3NO2 if 955 g N2 gas produced

mass of CH3NO2 if 955 g N2 gas produced

 

 

Nitromethane, a fuel occasionally used in drag racers,

burns according to the reaction:

4CH3NO2(l) + 3O2(g) → 4CO2(g) + 6H2O(g) + 2N2(g)

 

a) What is the volume of nitrogen gas produced at STP

if 3160 g of CH3NO2 is burned?

 

b) What is the mass of nitromethane burned

if 955 g of nitrogen gas are produced

in the exhaust of the drag racer?

 

c) What mass of water vapor is produced

in the exhaust along with 3.5×10^25 molecules of nitrogen gas?

 

---------------------------------------------------

 

b) What is the mass of nitromethane burned

if 955 g of nitrogen gas are produced

in the exhaust of the drag racer?

 

 

 

> CH3NO2의 몰질량 = 61.04 g/mol

> N2의 몰질량 = 28.01 g/mol

 

 

 

CH3NO2 연소 반응식

4CH3NO2 + 3O2 → 4CO2 + 6H2O + 2N2

 

N2의 질량이 주어졌고,

CH3NO2의 질량을 계산하라고 했으므로,

질량비로 계산하면,

( 참고: 질량비로 계산 https://ywpop.tistory.com/22115 )

 

CH3NO2 : N2 = 4(61.04) : 2(28.01) = ? g : 955 g

 

? = [4(61.04) (955)] / [2(28.01)]

= 4162 g CH3NO2

 

 

 

답: 4162 g

 

 

 

 

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