Recent questions and answers in Chapter 1: Some Basic Concepts of Chemistry

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point out the difference between 12 carbon and 12 uof cardon

asked Aug 2, 2022 in Chapter 1: Some Basic Concepts of Chemistry by anonymous

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1 answer 161 views

give one example of each elements

answered Dec 9, 2021 in Chapter 1: Some Basic Concepts of Chemistry by Doubtly (98.9k points)

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Distinguish between crystalline solids and amorphous solids.

answered May 16, 2021 in Chapter 1: Some Basic Concepts of Chemistry by Doubtly (98.9k points)

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What is meant by molar volume of a gas ?

answered May 13, 2021 in Chapter 1: Some Basic Concepts of Chemistry by anonymous

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What is the SI unit of amount of a substance ?

answered May 13, 2021 in Chapter 1: Some Basic Concepts of Chemistry by anonymous

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F. Types of matter (on the basis of chemical composition).

answered May 13, 2021 in Chapter 1: Some Basic Concepts of Chemistry by anonymous

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1 answer 188 views

Explain : Molar volume of gas.

answered May 13, 2021 in Chapter 1: Some Basic Concepts of Chemistry by Doubtly (98.9k points)

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1 answer 627 views

Explain Formula mass with an example.

answered May 1, 2021 in Chapter 1: Some Basic Concepts of Chemistry by Doubtly (98.9k points)

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1 answer 170 views

Explain Mole concept.

answered Apr 21, 2021 in Chapter 1: Some Basic Concepts of Chemistry by anonymous

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1 answer 190 views

Explain Molar mass.

answered Apr 21, 2021 in Chapter 1: Some Basic Concepts of Chemistry by anonymous

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1 answer 1.3k views

Explain The need of the term average atomic mass

answered Apr 21, 2021 in Chapter 1: Some Basic Concepts of Chemistry by anonymous

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1 answer 1.5k views

R. Calculate the mass of sulfur dioxide produced by burning 16 g of sulfur in excess of oxygen in contact process.

answered Apr 21, 2021 in Chapter 1: Some Basic Concepts of Chemistry by anonymous

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1 answer 822 views

Q. Calculate the number of atoms of hydrogen present in 5.6 g of urea, (NH2 )2 CO

answered Apr 21, 2021 in Chapter 1: Some Basic Concepts of Chemistry by anonymous

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1 answer 289 views

P. Calculate the mass of potassium chlorate required to liberate 6.72 dm3 of oxygen at STP

answered Apr 21, 2021 in Chapter 1: Some Basic Concepts of Chemistry by Doubtly (98.9k points)

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1 answer 1.1k views

O. What is volume of carbon dioxide, CO2 occupying by i. 5 moles and

answered Apr 21, 2021 in Chapter 1: Some Basic Concepts of Chemistry by Doubtly (98.9k points)

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1 answer 828 views

N. Calculate the number of moles of magnesium oxide, MgO in i. 80 g and ii. 10 g of the compound.

answered Apr 21, 2021 in Chapter 1: Some Basic Concepts of Chemistry by Doubtly (98.9k points)

+2 votes

1 answer 8.3k views

M.In two moles of acetaldehyde (CH3 CHO) calculate the following a. Number of moles of carbon b. Number of moles of hydrogen

answered Apr 21, 2021 in Chapter 1: Some Basic Concepts of Chemistry by Doubtly (98.9k points)

+1 vote

1 answer 747 views

L. 2.0 g of a metal burnt in oxygen gave 3.2 g of its oxide. 1.42 g of the same metal heated in steam

answered Apr 21, 2021 in Chapter 1: Some Basic Concepts of Chemistry by Doubtly (98.9k points)

+1 vote

1 answer 560 views

J. 24 g of carbon reacts with some oxygen to make 88 grams of carbon dioxide. Find out how much oxygen must have been used.

answered Apr 21, 2021 in Chapter 1: Some Basic Concepts of Chemistry by Doubtly (98.9k points)

+1 vote

1 answer 3.0k views

I. Calculate the number of moles and molecules of acetic acid present in 22 g of it.

answered Apr 21, 2021 in Chapter 1: Some Basic Concepts of Chemistry by Doubtly (98.9k points)

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