EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 1 - Stoichiometry (Mole Concept)>TS EAMCET - 9 August 2021 Shift 2>Q 2

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IMPORTANT

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How many moles of electrons weigh one $kg ?$

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Important Questions on Stoichiometry (Mole Concept)

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IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 1 - Stoichiometry (Mole Concept)>TS EAMCET Medical 2018 (02 May Shift-1)>Q 3

1 g

of an organic compound containing

C

and

H

, on complete combustion produced

3.04 g

of

{CO}_{2}

and

1.53 g

of

H_{2} O

. Find the approximate percentage composition of

C

and

H

in the compound.

MEDIUM

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 1 - Stoichiometry (Mole Concept)>TS EAMCET - 10 August 2021 Shift 1>Q 4

Among the following nitrogen compounds, which one has lowest percentage of nitrogen?

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 1 - Stoichiometry (Mole Concept)>TS EAMCET Medical 2019 (8-May Shift-2)>Q 5

How many moles of

O_{2}

are evolved when one mole of

{MnO}_{4}^{-}

is reduced to

{Mn}^{2 +}

by

H_{2} O_{2}

in an acidic medium?

HARD

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IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 1 - Stoichiometry (Mole Concept)>TS EAMCET Medical 2018 (02 May Shift-1)>Q 6

Conversion of molecular oxygen to ozone takes place only to the extent of

15 %

. Calculate the mass (in

g

) of ozone that is formed from

67.2 L

of oxygen at

STP

.

HARD

TS EAMCET

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 1 - Stoichiometry (Mole Concept)>TS EAMCET Medical 2021 (9-Aug Shift-1)>Q 7

20 g

of

{CaCO}_{3}

on heating produces

x

amount of

{CO}_{2} .

If the final weight of

{CaCO}_{3}

after the reaction is

5 g,

the amount of

{CO}_{2}

liberated in

L

at

STP

is

MEDIUM

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IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 1 - Stoichiometry (Mole Concept)>TS EAMCET Medical 2019 (8-May Shift-2)>Q 8

Molality

(m)

of

18 M H_{2} {SO}_{4}

is, approximately [

d = 1.84 g {cm}^{- 3}

, Molar mass of

H_{2} {SO}_{4} = 98 g {mol}^{- 1}

].

MEDIUM

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IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 1 - Stoichiometry (Mole Concept)>TS EAMCET Medical 2018 (02 May Shift-1)>Q 9

A fuel cell generates electricity by using methanol as fuel and

O_{2}

as the oxidant. Calculate the equivalent weight of methanol.