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What is the mass of : (a) 0.2 mole of oxygen atoms? (b) 0.5 mo

Science

Class 9

NCERT

Chapter 1: Matter in Our Surroundings

9 questions

Chapter 2: Is Matter Around Us Pure?

13 questions

Chapter 3: Atoms and Molecules

16 questions

Convert into mole.

(a)

12

g of oxygen gas

(b)

20

g of water

(c)

22

g of carbon dioxide.

What is the mass of :

(a)

0.2

mole of oxygen atoms?

(b)

0.5

mole of water molecules?

Calculate the number of molecules of sulphur

(S_{8})

present in

16 g

of solid sulphur.

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Chapter 4: Structure of the Atom

19 questions

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10 questions

Chapter 6: Tissues

15 questions

Chapter 7: Diversity in Living Organisms

6 questions

Chapter 8: Motion

18 questions

Chapter 9: Force and Laws of Motion

29 questions

Chapter 10: Work and Energy

23 questions

Chapter 11: Sound

25 questions

Chapter 12: Why do We Fall Ill?

6 questions

Chapter 13: Natural Resourses

6 questions

Chapter 14: Improvement in Food Resources

Chapter 15: Gravitation

29 questions

Question

Easy

Solving time: 3 mins

What is the mass of : $(a)$ $0.2$ mole of oxygen atoms? $(b)$ $0.5$ mole of water molecules?

Views: 5,996 students

Updated on: May 6, 2023

Book:

Science (NCERT)

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What is the mass of :

(a)

0.2

mole of oxygen atoms?

(b)

0.5

mole of water molecules?

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Text solutionVerified

(a) The mass of 1 mole of oxygen atoms = 16 g
Thus, the mass of 0.2 mole of oxygen atoms = 16 × 0.2 = 3.2 g

b) The mass of 1 mole of water molecules = 18 g
Thus, the mass of 0.5 mole of water molecules = 18 × 0.5 = 9.0 g

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Practice more questions from Science (NCERT)

Convert into mole.

(a)

12

g of oxygen gas

(b)

20

g of water

(c)

22

g of carbon dioxide.

What is the mass of :

(a)

0.2

mole of oxygen atoms?

(b)

0.5

mole of water molecules?

Calculate the number of molecules of sulphur

(S_{8})

present in

16 g

of solid sulphur.

View all

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Question Text	What is the mass of : $(a)$ $0.2$ mole of oxygen atoms? $(b)$ $0.5$ mole of water molecules?
Updated On	May 6, 2023
Topic	Atoms and Molecules
Subject	Science
Class	Class 9
Answer Type	Text solution:1 Video solution: 4
Upvotes	447
Avg. Video Duration	2 min

What is the mass of : $(a)$ $0.2$ mole of oxygen atoms? $(b)$ $0.5$ mole of water molecules?

Text solutionVerified

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What is the mass of : $(a)$ $0.2$ mole of oxygen atoms? $(b)$ $0.5$ mole of water molecules?