CHEMISTRY HIGH SCHOOL

What pressure in atmospheres(atm) is equal to 45.6 kPa?

Answers

Answer 1

Answer: 1 kpa = 0.0098692327 atm so just multiply that by 45.6

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How many liters of propane gas (C3H8) will undergo complete combustion with 34.0L of O2 gas?

Answers

The balanced chemical reaction will be:

C3H8 + 5O2 = 3CO2 +4H2O

We are given the amount of oxygen gas to burn the propane gas. This will be our starting point.

34.0 L O2 ( 1 mol O2 / 22.4 L O2 ) (1 mol C3H8 / 5 mol O2 ) ( 22.4 L C3H8 / 1 mol C3H8) = 6.8 L C3H8

French science
Does anyone understand any of this and how this all works ?

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