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Recent questions tagged chemical calculations
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1
answer
Balance the following equations in an acid medium by the ion-electron method or the half reaction method
asked
Apr 4, 2019
in
Chemistry
by
kratos
basic concepts of chemistry
cbse
class-11
redox reaction
reduction reaction
chemical calculations
oxidation
redox reactions
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vote
1
answer
Calculate the amount of water produced in gram by the combustion of 8 g of Methane.
asked
Apr 3, 2019
in
Chemistry
by
kratos
some basic concepts of chemistry
class-11
basic concepts of chemistry
chemical calculations
+2
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1
answer
10 ml of an aqeuous solution containing 222 mg of calcium chloride (mol. wt. = 111) is diluted to 100 ml.
asked
Mar 28, 2019
in
Chemistry
by
kratos
some basic concepts of chemistry
basic concepts of chemistry
class-11
kvpy
chemical calculations
class-12
+3
votes
1
answer
What will be the molar volume of nitrogen and argon at 273.15 K and 1atm pressure?
asked
Mar 26, 2019
in
Chemistry
by
kratos
basic concepts of chemistry
cbse
class-11
chemical calculations
heat and thermodynamics
class-12
states of matter
+2
votes
1
answer
Identify the redox reaction taking place in a beaker.
asked
Mar 26, 2019
in
Chemistry
by
kratos
basic concepts of chemistry
electrochemistry
redox reactions & electrochemistry
class-11
jee
redox reaction
jee mains
chemical calculations
redox reactions
class-12
electro chemistry
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votes
1
answer
In a reaction: A + B2 → AB2 Identify the limiting reagent, if any, in the following reaction mixtures.
asked
Mar 25, 2019
in
Chemistry
by
kratos
some basic concepts of chemistry
basic concepts of chemistry
cbse
class-11
jee mains 2019
chemical calculations
+3
votes
1
answer
What is limiting reagent.
asked
Mar 25, 2019
in
Chemistry
by
kratos
class-11
basic concepts of chemistry
chemical calculations
+1
vote
1
answer
Thermal decomposition of a Mn compound (X) at 513 K results in compound Y, MnO2 and gaseous product.
asked
Mar 24, 2019
in
Chemistry
by
kratos
basic concepts of chemistry
chemical bonding
class-11
jee
reduction reaction
jee mains
chemical calculations
oxidation
redox reactions
+3
votes
1
answer
Which one of the following is likely to give a precipitate with AgNO3 solution?
asked
Mar 23, 2019
in
Chemistry
by
kratos
organic chemistry
basic concepts of chemistry
jee main 2020
class-11
jee mains 2019
class-10
icse
chemical calculations
class-12
+1
vote
1
answer
If a compound, on analysis was found to contain C = 18.5%, H = 1.55%, Cl = 55.04% and O = 24.81%,
asked
Mar 21, 2019
in
Chemistry
by
kratos
some basic concepts of chemistry
basic concepts of chemistry
class-11
jee
jee mains
chemical calculations
+2
votes
1
answer
What is the oxidation number of oxygen in HCHO compound:
asked
Mar 20, 2019
in
Chemistry
by
kratos
ethers
carboxylic acids
basic concepts of chemistry
aldehydes
class-11
jee
ketones
alcohols
jee mains
chemical calculations
class-12
phenols
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votes
1
answer
How does the painting of an iron object prevent rusting?
asked
Mar 20, 2019
in
Chemistry
by
kratos
metals and nonmetals
basic concepts of chemistry
class-11
class-10
icse
chemical calculations
metallurgy
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votes
1
answer
Chlorine is prepared in the laboratory by treating manganese dioxide (MnO2) with aqueous
asked
Mar 19, 2019
in
Chemistry
by
kratos
some basic concepts of chemistry
basic concepts of chemistry
class-11
physical chemistry
mole and equivalent concept
chemical calculations
class-12
+3
votes
1
answer
Calculated the mass of FeSO4.7H2O, which must be added in 100 kg of wheat to get 10 PPM of Fe.
asked
Mar 18, 2019
in
Chemistry
by
kratos
some basic concepts of chemistry
basic concepts of chemistry
class-11
jee
acids bases and salts
hydrogen
class-10
jee mains
chemical calculations
+1
vote
1
answer
mass of oxygen = 2.76*10powerof -26 boltzmen constant 1.38*10 power -23
asked
Mar 17, 2019
in
Mathematics
by
kratos
isc
basic concepts of chemistry
vedic mathematics
class-11
class-6
decimal numbers
class-7
icse
chemical calculations
class-12
data handling
+2
votes
1
answer
PCl5 is a- (A) Oxidising agent (B) Reducing agent (C) Oxidizing & reducing agent both
asked
Mar 16, 2019
in
Chemistry
by
kratos
basic concepts of chemistry
cbse
p-block elements
class-11
bseb model set
chemical calculations
class-12
p - block element
+2
votes
1
answer
Equivalent weighs of KMnO4 acidic medium, neutral medium and concentrated alkaline medium respectively
asked
Mar 14, 2019
in
Chemistry
by
kratos
basic concepts of chemistry
class-11
jee
physical chemistry
transition and inner transition elements
redox titrations
chemestry practical
chemical calculations
jee mains
redox reactions
class-12
+1
vote
1
answer
a) Complete and balance the following chemical equations:(i) P4O10 + PCl→(ii) SnCl4 + C2H5Cl + Na →
asked
Mar 12, 2019
in
Chemistry
by
kratos
basic concepts of chemistry
properties of compounds
class-11
jee
jee mains
chemical calculations
p - block element
+1
vote
1
answer
What is Oxidation Number ? What is the oxidation Number of Cl is KClO3?
asked
Mar 11, 2019
in
Chemistry
by
kratos
some basic concepts of chemistry
basic concepts of chemistry
class-11
stoichiometry
class-10
icse
gaseous state
mole concept
chemical calculations
+3
votes
1
answer
The property by which certain hydrated salts, when left exposed to atmosphere, lose their water of crystallization and crumble into powder.
asked
Mar 9, 2019
in
Chemistry
by
kratos
chemistry in everyday life
basic concepts of chemistry
cbse
changes around us
class-11
acids bases and salts
class-10
icse
class-7
chemical calculations
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