Answer to Question #208421 in General Chemistry for Freya

Question #208421

A sample of air contains 78.08% Nitrogen, 20.94% oxygen and 0.980% Argon, by volume. How many moles of oxygen are present in 1.00L of the sample at 25.0 oC at 1.00 atm?


Note: if your answer is in exponential form just like this: 5.555 x 10-7

express your answer in this form: 5.555E-7



1
Expert's answer
2021-06-21T05:31:47-0400

1.00L = 1000ml = 1000g

20.94/100 × 1000

= 209.4g

Molar Mass of Oxygen = 15.999

= 209.4/15.999

= 13.088 moles


Need a fast expert's response?

Submit order

and get a quick answer at the best price

for any assignment or question with DETAILED EXPLANATIONS!

Comments

No comments. Be the first!

Leave a comment

Ask Your question

LATEST TUTORIALS
New on Blog
APPROVED BY CLIENTS