subject
Chemistry, 27.04.2021 15:50 shadowmatz

A student thermally decomposed a 0.150 gram sample of impure potassium chlorate. Manganese dioxide was used as a catalyst in the reaction. The student collected 43.60 mL of oxygen gas over water in a eudiometer. Potassium chloride was the other product of the reaction. The temperature and pressure at collection time were 20.00 oC and 762.10 mm Hg respectively. The water level in the eudiometer was 4.22 cm below the outside water level in the beaker. 1) What is the corrected pressure of the dry oxygen gas?
2) What is the volume in mL, of the dry oxygen gas at STP conditions?
3) How many molecules of oxygen were collected?
4) what is the percent purity of the original potassium chlorate sample?

ansver
Answers: 2

Another question on Chemistry

question
Chemistry, 21.06.2019 18:00
Which is a character of nuclear fusion but not nuclear fission
Answers: 3
question
Chemistry, 22.06.2019 03:30
Each pair of clay balls represents to planetesimals if each plane test molluscum pound of the same material and is separated by the same distance which pair experiences the greatest gravitational attraction
Answers: 2
question
Chemistry, 22.06.2019 08:00
Joe shines white light into a bowl half full of water at an angle of incident of 27.5°. calculate the angle of refraction in the water given the indices of refraction for air and water are 1.00 and 1.36, respectively.
Answers: 2
question
Chemistry, 22.06.2019 09:00
This chart lists four kinds of polymers and their sources. what can be known about all four polymers, despite their differences? they come from living things. they share ionic carbon bonds. they are at least 100 monomers long. they are made of repeating subunits.
Answers: 3
You know the right answer?
A student thermally decomposed a 0.150 gram sample of impure potassium chlorate. Manganese dioxide w...
Questions
question
Social Studies, 10.11.2019 06:31
question
Mathematics, 10.11.2019 06:31
question
Mathematics, 10.11.2019 06:31
question
Mathematics, 10.11.2019 06:31
Questions on the website: 13722365