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explain why cp is always greater than cv????
what is the formula and basicity of hydrated oxalic acid and anhydrous oxalic acid?
why oxygen is paramagnetic in nature by molecular orbital theory
what is physical equilibrium? Give two example
what type of substance is used for preparing standard solution?
Equal volumes of two solutions pH=2 and pH=4 are mixed together.Calculate the pH of the resulting solution?
rnWhy do we take equimolar quantities of reacting compounds in the preparation of double salts?rn
Why do we take equimolar quantities of reacting compounds in the preparation of double salts?
why are standard solutions always prepared in volumetric flask?
the value of Kc = 4.24 at 800K for the reaction
CO(g) + H2O(g) CO2(g) + H2(g)
Calculate the equilibrium concentration of CO2 ,H2O ,CO , H2 at 800K ,if only CO and H2O are pesent initially at concentration of 0.10M each.
degree of hydrolysis of N BY 100 solution of KCN is (given ka = 1.4 multiplied by 10 power -9)
100 ml of 0.1 N NaOH is mixed with 100 ml of 0.1 N H2SO4.The pH of the resultant solution is??
can solid NaOH be used to prepare its standard solution?
In a closed system:A(s)⇌2B(g)+3C(g) if the partial pressure of C is doubled then partial pressure of B will be??
Is SnCl4 a Lewis acid or a base???
Arrange the following Bronsted Acids in increasing acidic strength,Give Reason for your choice :
What is an evacuated vessel? [From Comprehensive Chemistry Pg.-370]
What is the pH of 10-8 M HCl solution?
What is meant by "weighing by transfer"?when is this used?answer with respect to basic laboratory techniques.
At 90'C, pure water has [H30+]=10-6mole/liter. the value of kW at 90'C is:
Question - The pH of 0.1 M monobasic acid is 4.50. Calculate the concentration of H+, A- and HA. Also determine the values of ka and pka of mono basic acid.
The pH of a solution obtained by mixing 100 ml of 0.2 M CH3COOH with 100 ml of 0.2 M NaOH will be??(given pKa for CH3COOH =4.74 and log 2=0.301)
Ksp of Mg(OH)2 is 4.0×10-12.The number of moles of Mg2+ ions in one litre of its saturated solution in 0.1 M NaOH is??
30 cc of M/3 HCl, 20 cc of M/2 HNO3 and 40 cc of M/4 NaOH are mixed and volume was made up of 1dm3. the pH of resulting solution is a) 8 b)2 c)1 d)3
Q] One mole of N2O4(g) at 300K is kept in a closed container under one atmosphere. It is heated to 600K when 20% by mass of N2O4(g) decomposes to NO2(g). The resultant pressure is??
At temperature T, a compound AB2 (g) diassociates according to the reaction :
2AB2(g) [reverisble sign ] 2AB(g) + B2.
with degree of dissociation, x, which is small compared to unity. Deduce the expression for x in terms of equillibrium constant Kp and the total pressure.
calculate simultaneous solubility of AgCNS and AgBr in a solution of water.Ksp AgCNS=1.2*10-12,Ksp AgBr=5*10-13
49) Which oxychloride has maximum pH?
a) NaClO b) NaClO2 c) NaClO3 d) NaClO4
88) A infinite dilution the percentage ionisation for both the strong and weak electrolyes is:
a) 1% b)20% c)50% d) 100%
the value of delta G for the phosphorylation of glucose in glycolysis is 13.8 kj/mol. Find the value of Kc at 298K?
Calculate the degree of ionization of 0.01M solution of HCN.Ka = 4.8 X 10-10.Also calculate H+ ion concentration of the solution
The solubility product constant of Ag2CrO4 and AgBr are 1.1 × 10–12 and 5.0 × 10–13 respectively. Calculate the ratio of the molarities of their saturated solutions.
1. Define Dynamic Equilibrium2. Define ionic equilibrium
The equilibrium constants KP1 and KP2 for the reactions X↔2Y and Z↔P +Q, respectively are in the ratio of 1 : 9. If the degree of dissociation of X and Z be equal then the ratio of total pressure at these equilibria is
How CH3COONa is a strong electrolyte?
When 0.1 mole of ammonia is dissolved in sufficient water to make 1 litre of solution.The solution is found to have a hydroxide ion concentration of 1.34×10-3.The dissociaton constant of ammonia is??
Ksp(BaSO4)= 1.5*10-9. find solubility in a)pure water b)0.1 M BaCl2 solution
reached, concentration of C was thrice the equilibrium concentration of B. Calculate KC.
1)- What is the pH of10-8 (N) HCl?
why are products more stable for an exothermic reaction and less stable for an endothermic reaction?
an excess of agno3 is added to 100 ml of a 0.01 M solution of [cr(h2o)4cl2]cl.the number of agcl precipated would be:
is this question based on common ion effect
plz explain me ostwald dilution law
calculate the pH of 1.0 X 10^ -8 M solution of HCL ?
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