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Derive Gibb’s-Helmholtz Equation.
What should be the ratio of concentrations of acetic acid and acetate ions to have a solution with pH 5.74? [pKa for acetic acid is 4.74].
Draw the Pressure v/s Volume graph for all the 4 steps of the Carnot Cycle and state which steps are isenthalpic (Involve no change entropy). Can a Carnot engine be 100 % efficient?
The system Carbonic acid and sodium hydrogen carbonate is found in blood and helps in maintaining the pH of blood close to 7.4.
Case I- Any excess of H+ entering blood is removed by HCO3- ion, Case II - Any excess of OH- entering blood is removed by H2CO3. Write the reactions for the above two cases.
You have two test tubes T1 and T2.
T1 contains 2.0 mL of 0.1 N CuCl2 solution and T2 contains 2.0 mL of 0.1 N NiCl2 solution. You add dil. HCl in both the test tubes till the solutions turns acidic. Then you pass H2S gas in both the test tubes. In which of the two test tubes precipitation will occur readily? What is the principle behind the formation of precipitate?
C4H8 has four isomers. A, B & Cgets reduced by KMnO4; D does not get reduced by
KMnO4. A forms an optically inactive mixture of two optically active forms in equal
amounts with acidified KMnO4 while B forms optically inactive meso form with
acidified KMnO4. Identify A, B, C & D.
C4H8 has four isomers. A, B & Cgets reduced by KMnO4; D does not get reduced by
KMnO4. A forms an optically inactive mixture of two optically active forms in equal
amounts with acidified KMnO4 while B forms optically inactive meso form with
acidified KMnO4. Identify A, B, C & D
A sample of gas occupies a volume of 300 ml at a pressure of 0.5 atm and a temperature of 22 0 C.
Calculate the new pressure if the volume is decreased to 220 ml at a constant temperature.
pretend you are a water molecule describe the journey you take and what happens to you as you transition between the solid liquid and gas phases you can journey in whichever direction you please as long as your energy changes and your phase change terminology is correctÂ
After removing membranes from an eggshell, the shell is dried and its mass is recorded as 5.613 g. The egg is transferred to a 250 mL beaker and dissolved in 25 mL of 6 M HCL. After filtering, the solution containing the dissolved eggshell is diluted to 250 mL in a volumetric flask. A 10.00 mL aliquot is placed in 125 mL flask and buffered to a pH of 10. Titrating with 0.0500 M EDTA requires 41.11 mL to reach the end point. Determine the amount calcium in the eggshell as %w/w CaCO3.
