Physical Chemistry Answers

Can you advise me? I am about to use Aluminium brackets to support a stainless steel sink outside in the back garden. What is the Galvanic (Voltaic) electrical potential between Aluminium abd 316 stainless steel? Should I put a plastic barrier between them?

Vessel containing an unknown volume of argon gas in cm^3 at 300°F and 101kpa was inverted and placed on cold ethanol. As the gas contracted, the pressure was quadruple while the temperature reduced by one third, what is the final volume in dm^3?

The fundamental and 1st overtone of a molecule are found 2886 (1/cm) and 5668 (1/cm). Calculate equilibrium oscillation wave no. and the anharmonicity constant

Which of the following has highest resistance during the passage of current.
1) 1N NaCl. 2) 0.1N NaCl
3) 2N NaCl. 4) 0.05 NaCl

A swimming pool, 20.0 m ✕ 12.5 m, is filled with water to a depth of 3.73 m. If the initial temperature of the water is 17.5°C, how much heat must be added to the water to raise its temperature to 28.5°C? Assume that the density of water is 1.000 g/mL.

52.7 mL of 0.1032 M dimethylamine ((CH3)2NH) is titrated with 0.0532 M HClO3. Determine the pH of the titrated solution after 34.7 mL HClO3 has been added. The base-dissociation constant for dimethylamine at 25°C is 5.4 ✕ 10−4.

A rigid container holds a gas at a pressure of 55kPa and a temperature of -100.0°C. What will the pressure be when the temperature is increased to 200.0°C?

A sample of limestone contains 60% CaCO3. Calculate the amount of limestone that will be required to produce just sufficient CO2 to convert 1litre of 1N NaOH into Na2CO3

If you take 109.7 mL of a 40.3 %(v) vinegar (acetic acid) solution, how many mL of acetic acid do you have?

Using suitable diagram, explain the Bi-Cd eutectic system