MEDIUM

Earn 100

$1.296 g$ of silver metal was displaced when $0.382 g$ of copper was added to the solution of silver sulphate. If the equivalent mass of silver is $108$ . Find that of copper.

Important Questions on Basic Concepts - Atoms & Molecules

MEDIUM

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

$4.74 g$ of cupric oxide on being heated in a current of hydrogen gave $3.78 g$ of the metal. Calculate the equivalent mass of copper rounded off to one decimal place.

MEDIUM

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

The vapour density of a volatile chloride of metal is

55.5 .

When

40 g

of the metal is dissolved in the acid,

22.4 litres

H_{2}

is liberated at

NTP

. The valency 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

MEDIUM

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

The chloride of a metal contained

52.85 %

of metal. What is the equivalent mass of the metal rounded off to one decimal place?

MEDIUM

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

0.54 g

of a metal gave

0.90 g

of its oxide. Calculate the equivalent mass of the metal.

HARD

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

The silver salt of a monobasic acid on ignition gave 60% of Ag. The molecular weight of the acid is

MEDIUM

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

What mass of the metal of equivalent mass

12

will give

0.475 g

of its chloride? (Give answer upto two decimal places)

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

$0.01 g$ of a metal when dissolved in $HCl$ liberates $10.65 mL$ of hydrogen collected over water at $27 ° C$ . The barometric pressure is $760 mm Hg$ . Aqueous tension at $27 ° C$ is $25 mm Hg$ . Calculate the equivalent weight of the metal approximated to the nearest integer in grams.

MEDIUM

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

Represent the union of two sets by Venn diagram for each of the following.

$X = {x | x$ is a prime number between $80$ and $100}$

$Y = {y | y$ is an odd number between $90$ and $100}$

EASY

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

An oxide of a metal contains $52.9 %$ metal. Calculate its equivalent mass rounded off to two decimal places.

MEDIUM

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

$2.943 g$ of a metal when treated with excess dil $H_{2} {SO}_{4}$ the volume of hydrogen collected was $1083.6 mL$ at $15 ° C$ and $752.5 mm$ of pressure. Calculate the equivalent mass of the metal approximated to the nearest integral value. (Aqueous tension at $15 ° C = 12.5 mm$ )