EASY

Earn 100

Write the relation between the molar mass and the equivalent mass of a base.

Important Questions on Basic Concepts - Atoms & Molecules

MEDIUM

Chemistry>Physical Chemistry>Basic Concepts - Atoms & Molecules>Equivalent Mass

1.520 g of the hydroxide of a metal on ignition gives 0.995 g of oxide. The equivalent weight of metal is

EASY

Chemistry>Physical Chemistry>Basic Concepts - Atoms & Molecules>Equivalent Mass

74.5

g of a metallic chloride contains

35.5

g of chlorine, the equivalent weight of the metal is

MEDIUM

Chemistry>Physical Chemistry>Basic Concepts - Atoms & Molecules>Equivalent Mass

{K M n O}_{4}

(mol.wt.= 158) oxidizes oxalic acid in acid medium to

{C O}_{2}

and water as follows

5 C_{2} O_{4}^{2 -} + 2 {M n O}_{4}^{-} + 16 H^{+} \to 10 {C O}_{2} + 2 {M n}^{2 +} + 8 H_{2} O

What is the equivalent weight of

{K M n O}_{4}

MEDIUM

Chemistry>Physical Chemistry>Basic Concepts - Atoms & Molecules>Equivalent Mass

The equivalent mass of chlorine is 35.5 and the atomic mass of copper is 63.5. the equivalent mass of copper chloride is 99.0. hence, formula of copper chloride is

MEDIUM

Chemistry>Physical Chemistry>Basic Concepts - Atoms & Molecules>Equivalent Mass

3

g of an oxide of a metal is converted to chloride completely and it yielded

5

g of chloride. The equivalent weight of the metal is

MEDIUM

Chemistry>Physical Chemistry>Basic Concepts - Atoms & Molecules>Equivalent Mass

The formula mass of Mohr's salt is 392. The iron present in it is oxidised by

{K M n O}_{4}

in acid medium. The equivalent mass of Mohr's salt is

MEDIUM

Chemistry>Physical Chemistry>Basic Concepts - Atoms & Molecules>Equivalent Mass

A certain amount of a metal whose equivalent mass is

28

displaces

0.7 L

H_{2}

at STP from an acid. Hence, mass of the element is

MEDIUM

Chemistry>Physical Chemistry>Basic Concepts - Atoms & Molecules>Equivalent Mass

The equivalent weight of Mohr's salt, FeSO₄.(NH₄)₂SO₄.6H₂O is equal to when it converts into

{Fe}_{2} {({SO}_{4})}_{3}

EASY

Chemistry>Physical Chemistry>Basic Concepts - Atoms & Molecules>Equivalent Mass

The formula mass of Mohr's salt is

392

. The iron present in it is oxidised by

{K M n O}_{4}

in acid medium. The equivalent mass of Mohr's salt is

MEDIUM

Chemistry>Physical Chemistry>Basic Concepts - Atoms & Molecules>Equivalent Mass

74.5 g of a metallic chloride contains 35.5 g of chlorine, the equivalent weight of the metal is

MEDIUM

Chemistry>Physical Chemistry>Basic Concepts - Atoms & Molecules>Equivalent Mass

Arsenic forms two oxides, one of which contains 65.2% and the other 75.5% of the element. Hence, equivalent masses of arsenic are in the ratio

HARD

Chemistry>Physical Chemistry>Basic Concepts - Atoms & Molecules>Equivalent Mass

In the disproportionation reaction

3 {H C l O}_{3} \to {H C l O}_{4} + {C l}_{2} + 2 O_{2} + H_{2} O,

the equivalent mass of the oxidising agent is (molar mass of

{H C l O}_{3} = 84.45

)

MEDIUM

Chemistry>Physical Chemistry>Basic Concepts - Atoms & Molecules>Equivalent Mass

2 g of metal carbonate is neutralised completely by 100mL of 0.1 N HCl. The equivalent weight of metal carbonate is

MEDIUM

Chemistry>Physical Chemistry>Basic Concepts - Atoms & Molecules>Equivalent Mass

In the reaction,

I_{2} + 2 S_{2} O_{3}^{2 -} ⟶ 2 I^{-} + S_{4} O_{6}^{2 -}

Equivalent weight of iodine will be equal to

MEDIUM

Chemistry>Physical Chemistry>Basic Concepts - Atoms & Molecules>Equivalent Mass

A bivalent metal has an equivalent mass of 32. The molecular mass of the metal nitrate is

MEDIUM

Chemistry>Physical Chemistry>Basic Concepts - Atoms & Molecules>Equivalent Mass

In the following reaction, which choice has value twice that of the equivalent mass of the oxidizing agent?

S O_{2} + H_{2} O ⟶ 3 S + 2 H_{2} O

EASY

Chemistry>Physical Chemistry>Basic Concepts - Atoms & Molecules>Equivalent Mass

Find the milli-equivalent of

H_{2} S O_{4} i n 4.9 g .

MEDIUM

Chemistry>Physical Chemistry>Basic Concepts - Atoms & Molecules>Equivalent Mass

In the reaction,

NaOH + Al {(OH)}_{3} \to {NaAlO}_{2} + H_{2} O

the equivalent mass of

Al {(OH)}_{3}

HARD

Chemistry>Physical Chemistry>Basic Concepts - Atoms & Molecules>Equivalent Mass

3 g of an oxide of a metal is converted to chloride completely and it yielded 5 g of chloride. The equivalent weight of the metal is-

EASY

Chemistry>Physical Chemistry>Basic Concepts - Atoms & Molecules>Equivalent Mass

A bivalent metal has an equivalent mass of

32

. The molecular mass of the metal nitrate is

Write the relation between the molar mass and the equivalent mass of a base.

Important Questions on Basic Concepts - Atoms & Molecules

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