Physical Chemistry Answers

A brick with a length width and height of 10.0cm 2.00cm and 5.00 cm. The pressure exerted by the brick on the floor is different when the brick is placed in different ways. If the minimum pressure exerted by the brick on the floor is 100.0Pa what is the forced exerted on the floor in Newton’s?

Mg + 2 HCl = Mg Cl2 + H2
If 200 mL of Hydrogen were produced from 0.25g of Mg reacting, what is the percent yield

What is the H_3O+ of a solution with a pHof 1.8?

How the photochemistry of Aniline depends on wavelength?

Wavelength dependent photochemistry of phenol.

How wavelength effects the photochemistry of toluene.

What are chemical bonding

Define solubility product constant and derive the relationships between solubility
and solubility product constants for salts of AB2, A2B types.

The pressure required to prevent liquid from entering a plug of a finely divided solid is twice as great for a liquid of surface tension 50 mN m"1, which completely wets the solid, as it is for a liquid of surface tension 70 mN m"1, which has a finite contact angle with the solid. Calculate this contact angle

A vessel and its content have a heat capacity of 500.it is heated using butane burner(the standered enthalpy of combustion of butane is-2877)
a)Calculate the mass of butane needed to give a theoretical temperature rise of 30 degree centigrade
b)Calculate the theoretical temperature rise occurring when 0.50g of butane is burned.