All in One - ICSE Chemistry>Chapter 5 - Mole Concept and Stoichiometry>CHECK POINT 02>Q 2

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10th ICSE

IMPORTANT

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An is the smallest particle of an element that can take part in a chemical reaction.

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Important Questions on Mole Concept and Stoichiometry

MEDIUM

10th ICSE

IMPORTANT

All in One - ICSE Chemistry>Chapter 5 - Mole Concept and Stoichiometry>CHECK POINT 02>Q 3

What is the difference between relative atomic mass and relative molecular mass of oxygen?

HARD

10th ICSE

IMPORTANT

All in One - ICSE Chemistry>Chapter 5 - Mole Concept and Stoichiometry>CHECK POINT 02>Q 4

If

22 g

of

{C O}_{2}

occupy V litre at

S T P

then what volume would

32 g

of

O_{2}

occupy at

S T P

? Justify your answer.

MEDIUM

10th ICSE

IMPORTANT

All in One - ICSE Chemistry>Chapter 5 - Mole Concept and Stoichiometry>CHECK POINT 02>Q 5

Which one is heavier,

1

mole of

{C O}_{2}

or

1

mole of

C O

?

HARD

10th ICSE

IMPORTANT

All in One - ICSE Chemistry>Chapter 5 - Mole Concept and Stoichiometry>CHECK POINT 03>Q 1

Calculate the mass of one atom of oxygen.

HARD

10th ICSE

IMPORTANT

All in One - ICSE Chemistry>Chapter 5 - Mole Concept and Stoichiometry>CHECK POINT 03>Q 2

What is the mass (in grams) of

2.5

moles of slaked lime,

C a {(O H)}_{2}

?

MEDIUM

10th ICSE

IMPORTANT

All in One - ICSE Chemistry>Chapter 5 - Mole Concept and Stoichiometry>CHECK POINT 03>Q 3

Identify the atomicity of the following:

$F e, A l, P_{5}, O_{3}$ .

MEDIUM

10th ICSE

IMPORTANT

All in One - ICSE Chemistry>Chapter 5 - Mole Concept and Stoichiometry>CHECK POINT 03>Q 4

The vapour density of

{C O}_{2}

gas is

22

. Find its molecular mass.

HARD

10th ICSE

IMPORTANT

All in One - ICSE Chemistry>Chapter 5 - Mole Concept and Stoichiometry>CHECK POINT 03>Q 5

Taking the example of combustion of hydrogen, as represented below, show how Avogadro’s law explain Gay-Lussac’s Law.

2 H_{2} (g) + O_{2} (g) \to 2 H_{2} O (g)

.