Chemistry, 14.04.2021 16:50 gracemartin4535

10. Air is a homogenous mixture of gases. Oxygen is 20% by volume of air typically. What amount of moles of oxygen is present in 20 L of air at STP?

Answers: 1

Show answers

Other questions on the subject: Chemistry

Chemistry, 22.06.2019 22:30, kajtazi8272

Which type of intermolecular force is pbr3

Answers: 1

continue

Chemistry, 23.06.2019 02:50, igraha17

Dumbledore decides to gives a surprise demonstration. he starts with a hydrate of na2co3 which has a mass of 4.31 g before heating. after he heats it he finds the mass of the anhydrous compound is found to be 3.22 g. he asks everyone in class to determine the integer x in the hydrate: na2co3·xh2o; you should do this also. round your answer to the nearest integ

Answers: 2

continue

Chemistry, 23.06.2019 06:20, cowboo5000pcl655

An object of mass 10.0 kg and volume 1000 ml and density 10 g/ml sinks in water who’s density is 1.0 g/ml. what is the mass of the water which has been displaced in kilograms

Answers: 1

continue

Chemistry, 23.06.2019 12:00, Pointjazzyqueen602

How can nonpolar molecule contain polar covalent bonds

Answers: 1

continue

You know the right answer?

10. Air is a homogenous mixture of gases. Oxygen is 20% by volume of air typically. What amount of...