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Convert into mole. (a) 12 g of oxygen gas (b) 20 g of water (c

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

What is the mass of:

(a)

1

mole of nitrogen atoms?

(b)

4

moles of aluminium atoms(Atomic mass of aluminium

= 27)?

(c)

10

moles of sodium sulphite

(N a_{2} S O_{3})?

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?

View all question

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

Convert into mole.
$(a)$ $12$ g of oxygen gas
$(b)$ $20$ g of water
$(c)$ $22$ g of carbon dioxide.

Views: 5,932 students

Updated on: Oct 3, 2023

Book:

Science (NCERT)

Found 6 tutors discussing this question

Lucas Discussed

Convert into mole.

(a)

12

g of oxygen gas

(b)

20

g of water

(c)

22

g of carbon dioxide.

5 mins ago

Discuss this question LIVE

5 mins ago

Text solutionVerified

(a) Molecular weight of oxygen in grams = 32 g of oxygen= one mole of oxygen gas

Thus, 12 g of oxygen

= \frac{1}{32} \times 12 = 0.375 m o l es

(b) Molecular weight of water

(H_{2} O)

in grams= 2+ 16=18 g=one mole of water

Thus, 20 g of water

= \frac{1}{18} \times 20 = 1.111 m o l es

(C O_{2})

in grams

= 12 + 2 \times 16 = 44 g =

one mole of carbon dioxide

Thus, 22 g of carbon dioxide

= \frac{1}{44} \times 22 = 0.5 m o l es

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Practice more questions from Science (NCERT)

What is the mass of:

(a)

1

mole of nitrogen atoms?

(b)

4

moles of aluminium atoms(Atomic mass of aluminium

= 27)?

(c)

10

moles of sodium sulphite

(N a_{2} S O_{3})?

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?

View all

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Question Text	Convert into mole. $(a)$ $12$ g of oxygen gas $(b)$ $20$ g of water $(c)$ $22$ g of carbon dioxide.
Updated On	Oct 3, 2023
Topic	Atoms and Molecules
Subject	Science
Class	Class 9
Answer Type	Text solution:1 Video solution: 19
Upvotes	2010
Avg. Video Duration	4 min

Convert into mole.
$(a)$ $12$ g of oxygen gas
$(b)$ $20$ g of water
$(c)$ $22$ g of carbon dioxide.

Text solutionVerified

Filo tutor solutions (19)

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Convert into mole.(a) 12 g of oxygen gas(b) 20 g of water(c) 22 g of carbon dioxide.

Text solutionVerified

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Convert into mole.
$(a)$ $12$ g of oxygen gas
$(b)$ $20$ g of water
$(c)$ $22$ g of carbon dioxide.