Disclaimer- I do NOT want answers to the specific question. I want to understand how to get the answers and which formulae to use. If your comment doesn't contain some form of process I will delete it as it is against the guidelines to give or ask for answers directly.
HOWEVER! I'm not sure on these calculations at all and I've probably made a lot of mistakes. So, I'd appreciate it if someone could check it over and let me know where I've gone wrong and give me tips to correct it.
The question is:
An athlete exhales 6.4g of breath at standard ambient temperature and pressure (25°C and 1atm), which is made up of 5% CO2, 16% O2 and 79% N2 by volume.
Calculate the following:
A) the molar mass of the mixture (kg/kmol)
B) the specific gas constant of the mixture (kJ/kg•K)
C) the mass fraction of O2
D) the volume of gas exhaled
Answers: 3
Chemistry, 22.06.2019 07:30
What is i fracture in the crust called when land move up, down or sideways
Answers: 2
Chemistry, 22.06.2019 13:50
Abeaker with 2.00×102 ml of an acetic acid buffer with a ph of 5.000 is sitting on a benchtop. the total molarity of acid and conjugate base in this buffer is 0.100 m. a student adds 4.70 ml of a 0.360 m hcl solution to the beaker. how much will the ph change? the pka of acetic acid is 4.740.
Answers: 1
Chemistry, 22.06.2019 18:00
Alidded glass container is filled with a colored gas. after a period of time, it is observed that the gas is uniformly spread throughout the box and that the movement has slowed considerably. next, a warm iron plate is carefully placed under the box. why is there resumed movement of the gas in the container?
Answers: 2
Disclaimer- I do NOT want answers to the specific question. I want to understand how to get the answ...
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