Question 1

The formula of mole is

Accepted Answer

Amounts of particles/Avogadro number

Answer

Amounts of particles x Avogadro  number

Answer

Avogadro number/Amounts of particles

Answer

Avogrado number x Amounts of particles

Question 2

relation mole, mass and atomic mass is...

Accepted Answer

Mass = Mole x Atomic Mass

Answer

Atomic Mass = Mass x Mole

Answer

Mole = Mass x Atomic Mass

Answer

Mass = Mole/Atomic Mass

Question 3

3.01 x 10^22 molecules is equal to ...moles

Accepted Answer

0.05

Answer

0.5

Answer

2

Answer

20

Question 4

0.5 moles of H2 gas contain ... molecules

Accepted Answer

3.01 x 10^23

Answer

6.02 x 10^22

Answer

6.02 x 10^23

Answer

3.01 x 10^22

Question 5

3.6 grams of H2O (Mr =18 g/mol) contain...moles

Accepted Answer

0.2

Answer

6.48

Answer

2

Answer

64.8

Question 6

Molar Mass of 80 grams which contain 2 moles of molecules is...gram/mole

Accepted Answer

40

Answer

4

Answer

16

Answer

160

Question 7

0.25 moles of gas methane (CH4) (Mr = 16 grams/mol) is ... grams

Accepted Answer

4

Answer

64

Answer

6.4

Answer

40

Question 8

0.2 grams of H2 (Mr=2 g/mol) gas have ... molecules

Accepted Answer

6.02 x 10^22

Answer

12.04 x 10^23

Answer

12.04 x 10^22

Answer

6.02 x 10^23

Question 9

12.04 x 10^23 molecules of water (H2O) (Mr=18) equal to ....grams

Accepted Answer

36

Answer

3.6

Answer

9

Answer

90

Question 10

3.01 x 10^23 molecules of compounds have 30 grams of mass. What is Molar Mass (Mr) of the compound?

Accepted Answer

60 gr/mole

Answer

150 gr/mole

Answer

15 gr/mole

Answer

600 gr/mole

Related quizzes

Related quizzes