All In One SCIENCE CBSE Class IX>Chapter 3 - Atoms and Molecules>Check Point 04>Q 1

MEDIUM

9th CBSE

IMPORTANT

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How formula unit mass is different from molecular mass?

Important Questions on Atoms and Molecules

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9th CBSE

IMPORTANT

All In One SCIENCE CBSE Class IX>Chapter 3 - Atoms and Molecules>Check Point 04>Q 2

Which one is a larger quantity molar mass or molecular mass? Explain.

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9th CBSE

IMPORTANT

All In One SCIENCE CBSE Class IX>Chapter 3 - Atoms and Molecules>Check Point 04>Q 3

Calculate the molar mass of the following compound:

$MgO$

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9th CBSE

IMPORTANT

All In One SCIENCE CBSE Class IX>Chapter 3 - Atoms and Molecules>Check Point 04>Q 3

Calculate the molar mass of the following compound:

{Na}_{2} {CO}_{3}

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9th CBSE

IMPORTANT

All In One SCIENCE CBSE Class IX>Chapter 3 - Atoms and Molecules>Check Point 04>Q 3

Calculate the molar mass of the following compound:

H_{3} {PO}_{4}

MEDIUM

9th CBSE

IMPORTANT

All In One SCIENCE CBSE Class IX>Chapter 3 - Atoms and Molecules>Check Point 04>Q 3

Calculate the molar mass of the following compound:

Ca (OH)_{2}

MEDIUM

9th CBSE

IMPORTANT

All In One SCIENCE CBSE Class IX>Chapter 3 - Atoms and Molecules>Check Point 04>Q 3

Calculate the molar mass of the following compound:

{AI}_{2} ({SO}_{4})_{3}

HARD

9th CBSE

IMPORTANT

All In One SCIENCE CBSE Class IX>Chapter 3 - Atoms and Molecules>Check Point 04>Q 4

Predict the mass possessed by a certain number of oxygen atoms which is equal to the number of molecules present

1 g

of hydrogen gas?

HARD

9th CBSE

IMPORTANT

All In One SCIENCE CBSE Class IX>Chapter 3 - Atoms and Molecules>Check Point 04>Q 5

Calculate the number of sodium ions that are present in

212 g

of sodium carbonate.