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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

_{3}COONa and 2 M HCl are mixed, pH is found to be x and on mixing equal volumes of 2 M CH_{3}COOH and 2 M CH_{3}COONa, pH is found to be y. Hence iswhat 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?

NO3- , NO2- NO2. and NO2+

rn

Why do we take equimolar quantities of reacting compounds in the preparation of double salts?

rnplz answer me soon and explain

degree of hydrolysis of N BY 100 solution of KCN is (given ka = 1.4 multiplied by 10 power -9)

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.

why are standard solutions always prepared in volumetric flask?

100 ml of 0.1 N NaOH is mixed with 100 ml of 0.1 N H

_{2}SO_{4}.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 SnCl_{4}a Lewis acid or a base???Arrange the following Bronsted Acids in increasing acidic strength,Give Reason for your choice :1)HCl,HBr ,HI,CH_{3}COOH,HCO_{3},H_{2}O2)HCOOH,C_{6}H_{5}COOH,CH_{3}COOHWhat 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^{-6}mole/liter. the value of k_{W}at 90'C is:^{-6}^{-8}^{-12}^{-14}_{5}is 50% dissociated at an equilibrium pressure of 4 atm. At what pressure it would dissociate to the extent of 80% at the same temperature:-a) 0.05 atm

b) 0.60 atm

c) 0.75 atm

d) 2.50 atm

Kindly answer sir/mam.

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._{4}(g) is attained by mixing equal moles of A and B in a one litre vessel. Then at equilibrium:- (Kindly explain the answer also)a) [A] = [B]

b) [A] > [B]

c) [A] < [B]

d) [AB

_{4}] > [A]Kindly answer sir/mam.

The pH of a solution obtained by mixing 100 ml of 0.2 M CH

_{3}COOH with 100 ml of 0.2 M NaOH will be??(given pK_{a}for CH_{3}COOH =4.74 and log 2=0.301)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

_{p}) are related as ${\mathrm{K}}_{\mathrm{p}}=\frac{4{\mathrm{\alpha}}^{2}\mathrm{P}}{\left(1-{\mathrm{\alpha}}^{2}\right)}$?(1) ${\mathrm{N}}_{2}{\mathrm{O}}_{4}\left(\mathrm{g}\right)\rightleftharpoons 2{\mathrm{NO}}_{2}\left(\mathrm{g}\right)$

(2) ${\mathrm{H}}_{2}\left(\mathrm{g}\right)+{\mathrm{I}}_{2}\left(\mathrm{g}\right)\rightleftharpoons 2\mathrm{HI}\left(\mathrm{g}\right)$

(3) ${\mathrm{N}}_{2}\left(\mathrm{g}\right)+3{\mathrm{H}}_{2}\left(\mathrm{g}\right)\rightleftharpoons 2{\mathrm{NH}}_{3}\left(\mathrm{g}\right)$

(4) ${\mathrm{PCl}}_{3}\left(\mathrm{g}\right)+{\mathrm{Cl}}_{2}\left(\mathrm{g}\right)\rightleftharpoons {\mathrm{PCl}}_{5}\left(\mathrm{g}\right)$

K

_{sp}of Mg(OH)_{2 }is 4.0×10^{-12}.The number of moles of Mg^{2+}ions in one litre of its saturated solution in 0.1 M NaOH is??2SO2 + O2 ------> 2SO3

has a value of 278 at a particular temperature. What is the value of the equilibrium constant for the reaction at the same temperature

SO3 -----> SO2+ ½O2

Q] One mole of N

_{2}O_{4}(g) at 300K is kept in a closed container under one atmosphere. It is heated to 600K when 20% by mass of N_{2}O_{4}(g) decomposes to NO_{2}(g). The resultant pressure is??acid

alkaline

neutral

amphoteric

pls provide proper explaination..the answer is given acid but i m not sure about it.

If the value of Kc is 3, the percentage by mass of iso-butanein the equilibriummixture would be:-

a) 75%

b) 90%

c) 30%

d) 60%

Kindly answer sir/mam.

a<l+m

a=l+m

a=l-m

a>l+m

At temperature T, a compound AB

_{2}(g) diassociates according to the reaction :2AB

_{2}(g) [reverisble sign ] 2AB(g) + B_{2}.with degree of dissociation, x, which is small compared to unity. Deduce the expression for x in terms of equillibrium constant K

_{p}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}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^{}^{}49) Which oxychloride has maximum pH?

a) NaClO b) NaClO

_{2}c) NaClO_{3}d) NaClO_{4}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?

The solubility product constant of Ag

_{2}CrO_{4}and AgBr are 1.1 × 10^{–12}and 5.0 × 10^{–13}respectively. Calculate the ratio of the molarities of their saturated solutions.H2(g)+I2(g)2HI(g)

at 720K is 48. What is the value of the equilibrium constant for the reaction

1/2H2(g)+1/2I2(g)HI(g)

The equilibrium constants K

_{P1}and K_{P2}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_{2}PO_{4}and NaHPO_{2}are forming buffers?pressure increase

pressure decrease

temp increase

temp decrease

explain

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??Law of chemical equilibrium or equilibrium lawplease explain this law again

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?CO (g) + 1/2 O2 equlibrium equal is Co2 (g) is

1. Define Dynamic Equilibrium

2. Define ionic equilibrium

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

For nitrate test : sample salt + conc. H2SO4 ; adding Cu pellets will result in formation of brown gas which shows presence of nitrate ion.

Reactions : NO

_{3}^{-}+ H2SO4 == HSO_{4}^{-}+ HNO34 HNO3 + Cu == Cu(NO3) + 2 NO2 (brown gas) + 2 H

_{2}OWhy this reaction won't follow if dilute H2SO4 were used instead of conc. H2SO4 ?

_{}2 NO(g) + Br_{2}(g) . If P_{Br2}_{}= P/9 at equilibrium and P is total pressure, the ratio of Kp/P is equal to(The ones marked in blue, those steps I couldn't understand , please explain it )the equilibrium constant kp= 2.9*10^ -5 atm^3. the total pressure of gases at equilibrium when 1.0 mole of reactant was heated will be

plz explain me ostwald dilution law

why are products more stable for an exothermic reaction and less stable for an endothermic reaction?

calculate the pH of 1.0 X 10^ -8 M solution of HCL ?