Other Chemistry Answers

A piece of metal was heated comes in contact with ice. Assuming that heat transfer only transpired between the metal and ice, solve what is being asked given the following data:

Initial Temperature of metal: 87.8 degree Celsius

Final Temperature of metal: 14.1 degree Celsius

Mass of Metal: 4 grams

Specific heat of metal: 0.123 J/gK

Heat loss by the metal: (1)

Initial Temperature of Ice: -2.4 degree Celsius

Specific Heat of ice: 2.092 J/gK

Specific Heat of water: 4.184 J/g°C

Heat of Fusion of ice: 335 J/g

Total Heat gained: (2)

Final Temperature of water in degree Celsius: (3)

Mass of ice in grams: (5)

Density of water in g/mL at equilibrium: (6)

Volume of water in mL at equilibrium: (7)

A sample x was heated and it begins to melt at 74 degrees celsius. Pure x is known to have a melting point of 80 degree celsius. Was the sample that was heated, a pure substance or does it contain impurity? 

Elucidate enzymes under the following sub headings:

Properties and classification

Enzyme kinetics

Enzyme inhibition and regulation

Role of enzymes in clinical diagnostics

An empty aerosol-spray can at room temperature (20 ◦C) is thrown into an incinerator where the temperature reaches 452◦C. If the gas inside the empty container was initially at a pressure of 1 atm, what pressure did it reach inside the incinerator?