Chem Last Min Sirimavo

Question 1

What is avagadro’s number?

Answer 1

6.02 x 10^23

Question 2

How to find mass?

Answer 2

Mass = moles x Mr

Question 3

How to find concentration?

Answer 3

Concentration = mass / volume
Or
Conenctration = moles/volume

Question 4

How to find volume of a gas?

Answer 4

Volume of gas = mole x 24 dm

Question 5

What is 1dm in cm?

Answer 5

1000cm

Question 6

What is 1cm in dm?

Answer 6

0.001

Question 7

How to find Rf value in chromotography?

Answer 7

Rf = distance if substance / distance of solvent