LIVING SCIENCE CHEMISTRY 9>Chapter 3 - Atoms and Molecules>Practice Questions>Q 10

MEDIUM

9th CBSE

IMPORTANT

Earn 100

Calculate the mass of $1$ molecule of oxygen.

Important Questions on Atoms and Molecules

HARD

9th CBSE

IMPORTANT

LIVING SCIENCE CHEMISTRY 9>Chapter 3 - Atoms and Molecules>Practice Questions>Q 11

Which of the following weighs the most:
a.

56

g of iron
b.

1 \times 10^{23}

atoms of carbon
c.

0.1

gram-atom of silver
d.

5

gram-atom of nitrogen?

HARD

9th CBSE

IMPORTANT

LIVING SCIENCE CHEMISTRY 9>Chapter 3 - Atoms and Molecules>Practice Questions>Q 12

Calculate the mass of nitrogen which contains the same number of molecules as are contained in

4.4 g

of carbon dioxide.

MEDIUM

9th CBSE

IMPORTANT

LIVING SCIENCE CHEMISTRY 9>Chapter 3 - Atoms and Molecules>Practice Questions>Q 13

Calculate the mass of

2.5

moles of

{Cl}_{2}

.

MEDIUM

9th CBSE

IMPORTANT

LIVING SCIENCE CHEMISTRY 9>Chapter 3 - Atoms and Molecules>Practice Questions>Q 13

Calculate the mass of

1

mole of water.

MEDIUM

9th CBSE

IMPORTANT

LIVING SCIENCE CHEMISTRY 9>Chapter 3 - Atoms and Molecules>Practice Questions>Q 14

Calculate the mass of

H_{2} S

contained in

0.40

mole of

H_{2} S

.

MEDIUM

9th CBSE

IMPORTANT

LIVING SCIENCE CHEMISTRY 9>Chapter 3 - Atoms and Molecules>Practice Questions>Q 15

Calculate the number of moles in $17 g$ of $H_{2} O_{2}$ .

MEDIUM

9th CBSE

IMPORTANT

LIVING SCIENCE CHEMISTRY 9>Chapter 3 - Atoms and Molecules>Practice Questions>Q 16

What is the mass of

10

moles of sodium sulphite (

{Na}_{2} {SO}_{3}

)?

MEDIUM

9th CBSE

IMPORTANT

LIVING SCIENCE CHEMISTRY 9>Chapter 3 - Atoms and Molecules>Practice Questions>Q 17

A sample of ammonia (

{NH}_{3}

) weighs

2.00 g

. Calculate the mass of sulphur dioxide (

{SO}_{2}

) that contains the same number of molecules as are in

2.00 g

of ammonia.