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500ml of 0.1M HCOOH (formic acid) is mixed with 1500ml of 0.05M H2SO4 solution calculate pH of the solution
asked
Apr 3, 2019
in
Class 12
by
kratos
neet
acids
jee main 2020
chemical
class-11
aiims
jee
ionic equilibrium
jee mains
bases
equilibrium
+3
votes
1
answer
Identify the substance oxidised, reduced, oxidising agent and reducing agent for each of the following reactions:
asked
Apr 2, 2019
in
Class 11
by
kratos
class- 11
chemical
class-11
class-10
calculation
chemical reactions and equations
+1
vote
1
answer
Vapour density of the equilibrium mixture of the reaction SO2Cl2(g) ⇋ SO2(g) + Cl2(g) is 50.0. Percent dissociation of SO2Cl2 is :
asked
Mar 31, 2019
in
JEE
by
kratos
chemical
jee
ionic equilibrium
jee mains
equilibrium
class-12
chemical equilibrium
+3
votes
1
answer
(a) A sample of NaOH weighing 0.38 g is dissolved in water and the solution is made to 50.0 cm^3 in a volumetric flask.
asked
Mar 31, 2019
in
Chemistry
by
kratos
some basic concepts of chemistry
class- 11
chemical
class-11
physical chemistry
calculation
mole and equivalent concept
class-12
+3
votes
1
answer
(A) N2(g)+3H2(g)⇋ 2NH3(g), ∆H = –ve (p) K increases with increase in T
asked
Mar 24, 2019
in
JEE
by
kratos
chemical
class-11
jee
physical and chemical equilibrium
ionic equilibrium
jee mains
equilibrium
class-12
chemical equilibrium
+3
votes
1
answer
Find the positive integers x and y such that x + y = 60 and xy^3 is maximum.
asked
Mar 23, 2019
in
Class 12
by
kratos
class- 11
chemical
kvpy
application of derivative
calculation
class-12
+3
votes
1
answer
Calculate the normality of oxalic acid solution containing 0.895 g crystals in 250 cm^3 of its solution.
asked
Mar 19, 2019
in
Chemistry
by
kratos
some basic concepts of chemistry
class- 11
chemical
class-11
jee
calculation
jee mains
+1
vote
1
answer
Solubility of sodium hydroxide increases with increase in temperature.
asked
Mar 19, 2019
in
JEE
by
kratos
chemical
jee
ionic equilibrium
jee mains
+1
vote
1
answer
The conjugate acid of NH^-2 is
asked
Mar 18, 2019
in
JEE
by
kratos
chemical
class-11
jee
ionic equilibrium
jee mains
equilibrium
+2
votes
1
answer
The conjugate acid of NH^-2 is (a) NH3 (b) NH2OH
asked
Mar 17, 2019
in
JEE
by
kratos
chemical
jee
ionic equilibrium
jee mains
+2
votes
1
answer
The solubility of Mg(OH)2 in pure water is 9 .57 x 10^-3g/L. Calculate its solubility (in g/L) in 0.02 M Mg (NO3)2 solution.
asked
Mar 16, 2019
in
Chemistry
by
kratos
chemical
class-11
jee
physical chemistry
ionic equilibrium
jee mains
class-12
+1
vote
1
answer
ZnI2, can be prepared by the direct combination of elements.
asked
Mar 14, 2019
in
Class 11
by
kratos
chemical
calculation
class- 11
+1
vote
1
answer
Write the Lewis structure for the formation of NH3.
asked
Mar 13, 2019
in
JEE
by
kratos
chemical bonding
chemical
class-11
jee
molecular structure
class-10
ionic equilibrium
jee mains
equilibrium
class-12
+3
votes
1
answer
The solubility of PbCl2 in water is 0.01 M at 25°C. Its maximum concentration in 0.1 M NaCl will be:
asked
Mar 10, 2019
in
JEE
by
kratos
chemical
jee
ionic equilibrium
jee mains
class-12
+2
votes
1
answer
Calculate molarity and normality of the following solution, (a) HCl (b) H2C2O4
asked
Mar 5, 2019
in
Chemistry
by
kratos
some basic concepts of chemistry
class- 11
chemical
class-11
jee
calculation
jee mains
class-12
+2
votes
1
answer
An acidic buffer solution can be prepared by mixing the solutions of (a) sodium acetate and acetic acid
asked
Mar 3, 2019
in
JEE
by
kratos
chemical
jee
ionic equilibrium
jee mains
+1
vote
1
answer
An aqueous solution of sodium acetate has pH greater than 7. Explain with equation.
asked
Feb 28, 2019
in
JEE
by
kratos
isc
chemical
class-11
jee
hydrocarbons
icse
ionic equilibrium
jee mains
equilibrium
class-12
+1
vote
1
answer
When equal volumes of the following solutions are mixed, precipitation of AgCl (Ksp = 1.8 x 10^-10) will occur only with
asked
Feb 25, 2019
in
Chemistry
by
kratos
chemical
class-11
jee
acids bases and salts
physical chemistry
ionic equilibrium
jee mains
bitsat
+2
votes
1
answer
A student want to prepare a saturated solution of Ag^+ ion. He has got three samples AgCl (Ksp = 10^–10), AgBr (Ksp = 10^–13)
asked
Feb 24, 2019
in
Chemistry
by
kratos
electrochemistry
chemical
class-11
jee
physical chemistry
ionic equilibrium
jee mains
class-12
+3
votes
1
answer
The solubility product of Ca(OH)2 at 25°C is 4.42 x 10^-5.
asked
Feb 21, 2019
in
JEE
by
kratos
jee main 2021
chemical
jee
ionic equilibrium
jee mains
jee main
equilibrium
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