Practice MOLECULAR MASS - 3.5.1 | 3. Atoms and Molecules | CBSE 9 Science
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MOLECULAR MASS

3.5.1 - MOLECULAR MASS

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Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What is the molecular mass of water?

💡 Hint: Consider the atomic masses of hydrogen and oxygen.

Question 2 Easy

What is the formula unit mass of sodium chloride?

💡 Hint: Add the atomic masses of sodium and chlorine.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is the molecular mass of a molecule of water (H₂O)?

16 u
18 u
20 u

💡 Hint: Add up the weights of hydrogen and oxygen.

Question 2

True or False: Molecular mass is applicable only to ionic compounds.

True
False

💡 Hint: Think about the type of bond in the compound.

1 more question available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

A laboratory synthesized a compound C₄H₅O. Calculate its molecular mass and compare it with that of glucose (C₆H₁₂O₆).

💡 Hint: Use atomic masses for carbon (12), hydrogen (1), and oxygen (16).

Challenge 2 Hard

What is the molecular mass of a compound made of 3 parts sodium, 1 part sulfur, and 4 parts oxygen?

💡 Hint: Calculate using the atomic mass of each component.

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