Physical Chemistry Answers

An unknown silver/gray (92.9-g) piece of metal at 178.0°C is quickly placed to 75.0 mL of water initially at 24.0°C. After a few minutes, both the metal and the water have reached 29.7°C. Calculate the specific heat and the identity of the metal

The potential of the cell Bi |Bi2S3(s)|Bi2S3(aq)|Bi is 0.96 V at 25°C. Calculate (a) the solubility product of Bi2S3 and (b) its solubility

What's is the lambda max of phellandrene?

The initial pressure of the gas is 457  mmHg, the final volume is 750 mL, with a  final pressure of 650 mmHg. What is the  initial volume of the gas?

Determine the oxidation state of nitrogen in NH₃ and NO₃^–.

In the distribution of succinic acid between ether and water at 15 degrees Celsius 20 ml of the ethereal layer contains 0.092g of acid find the weight of the acid present in 50ml of the aqueous layer in equilibrium with it if the distribution company efficient for succinic acid. Between water and ether is 5.2

The combustion of 1.50g sample of the rocket fuel hydrazine N2H4 released 30.4kj of heat.calculate the molar heat of combustion of hydrazine

The composition and temperature at electric point in Bi-Cd system are

A student must use 225 g of hot water in a lab procedure. Calculate the amount of heat required to raise the temperature of 225 g of water from 20.0 ^oC to 100.0^oC.

A mixture of 90.0 grams of CH4 and 10.0 grams of argon has a pressure of 250 torr under conditions of constant temperature and volume. The partial pressure of CH4 in torr is: