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Recent questions tagged mole concept
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In Haber process, 30 L of dihydrogen and 30 L of dinitrogen were taken for reaction which yielded only 50%
asked
Apr 7, 2019
in
Class 12
by
kratos
neet
jee
stoichiometry
mole concept
jee mains
equilibrium
chemical equilibrium
+1
vote
1
answer
An element (X) forms compounds of the formula XCl3, X2O5 and Ca3X2, but does not form XCl5.
asked
Apr 6, 2019
in
Class 12
by
kratos
neet
cbse
aiims
ntse
class-10
carbon and its compounds
mole concept
class-12
p - block element
+2
votes
1
answer
In the dissociation of N2O4 into NO2, (1+x) varies with the vapour densities ratio D/d as given by
asked
Apr 3, 2019
in
Chemistry
by
kratos
class-11
jee
physical chemistry
stoichiometry
gaseous state
mole concept
jee mains
mole and equivalent concept
equilibrium
class-12
chemical equilibrium
+3
votes
1
answer
1 L of a mixture of CO and CO2 is taken. This mixture is passed through a tube containing red hot charcoal.
asked
Apr 2, 2019
in
JEE
by
kratos
jee
stoichiometry
class-10
icse
jee mains
mole concept
+1
vote
1
answer
In the given equation identify the rate played by concentrated sulphuric acid * + 2H2SO4 ---> 3SO2 + 2H2O:
asked
Apr 1, 2019
in
Class 10
by
kratos
sulphuric acid
stoichiometry
class-10
icse
mole concept
study of compounds
+3
votes
1
answer
Calculate the percentage of nitrogen and oxygen in ammonium nitrate. [Relative molecular mass of ammonium nitrate is 80, H = 1, N = 14, O = 16]
asked
Apr 1, 2019
in
Class 10
by
kratos
class-10
icse
mole concept
stoichiometry
+2
votes
1
answer
560 ml. of carbon monoxide is mixed with 500 ml of oxygen and ignited. The chemical equation
asked
Mar 31, 2019
in
JEE
by
kratos
stoichiometry
mole concept
jee mains
class-10
icse
jee
+3
votes
1
answer
An excess of liquid mercury is added to an acidified solution of 1.0 × 10^–3 M Fe^3+.
asked
Mar 31, 2019
in
Chemistry
by
kratos
electrochemistry
class-11
jee
hydrogen
stoichiometry
redox reaction
jee mains
mole concept
redox reactions
+2
votes
1
answer
If 9.3 g of phosphorus was used in the reaction, calculate : The volume of nitrogen dioxide produced at STP. [H = 1, N = 14, P = 31 ,O = 16]
asked
Mar 30, 2019
in
Chemistry
by
kratos
some basic concepts of chemistry
class-11
stoichiometry
class-10
icse
mole concept
+2
votes
0
answers
Define the unified atomic mass unit (u).
asked
Mar 29, 2019
in
Physics
by
kratos
jee
jee mains
mole concept
class-12
nuclear physics
+3
votes
1
answer
What mass of sodium hydrogen carbonate must be heated to give 21.2 g. of sodium carbonate (Molecular weight of NaHCO3 = 84).
asked
Mar 29, 2019
in
JEE
by
kratos
jee
stoichiometry
class-10
icse
mole concept
jee mains
+2
votes
1
answer
Potassium, sodium, magnesium are high reactive metals and occur as chlorides in nature. Suggest and explain the suitable method
asked
Mar 29, 2019
in
JEE
by
kratos
metals and nonmetals
class-11
jee
stoichiometry
class-10
mole concept
jee mains
metals and non-metals
+1
vote
1
answer
Assertion : In high spin situation, configuration of d^5 ions will be t^32g e^2g.
asked
Mar 29, 2019
in
Class 12
by
kratos
neet
coordination compounds
jee
stoichiometry
class-10
icse
mole concept
jee mains
class-12
+2
votes
1
answer
How do you express the percentage composition?
asked
Mar 28, 2019
in
Class 12
by
kratos
neet
mole concept
+3
votes
1
answer
Calculate the molality of 1 L solution of 93 % H2SO4. (weight/volume).The density of the solution is 1.84 g/mL.
asked
Mar 27, 2019
in
JEE
by
kratos
jee
stoichiometry
class-10
icse
jee mains
mole concept
+3
votes
1
answer
Calculate the volume of 320 g of SO2 at stp. (Atomic mass : * = 32 and O = 16).
asked
Mar 26, 2019
in
Class 11
by
kratos
cbse
class-11
stoichiometry
class-10
icse
mole concept
kinetic theory of gases
+2
votes
1
answer
Calculate the amount of carbon dioxide that could be produced when 2 ***** of carbon are burnt in 16 g of dioxygen.
asked
Mar 26, 2019
in
Chemistry
by
kratos
some basic concepts of chemistry
cbse
class-11
molecular mass
mole concept
+2
votes
1
answer
Calculate the volume of 320 g of SO2 at stp. [* = 32 and O = 16]
asked
Mar 25, 2019
in
Class 10
by
kratos
class-10
icse
mole concept
stoichiometry
+1
vote
1
answer
“The number of atoms in one mole of hydrogen is twice the number of atoms in 1 mole of helium at the same temperature and pressure.” Why ?
asked
Mar 25, 2019
in
Class 10
by
kratos
class-10
icse
mole concept
stoichiometry
+2
votes
1
answer
An inorganic substance liberates O2(g) on heating, turns acidified KI (aq) to brown colour
asked
Mar 24, 2019
in
Chemistry
by
kratos
practical chemistry
class-11
jee
hydrogen
stoichiometry
class-10
icse
jee mains
mole concept
qualitative analysis
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