A buffer is made by adding 0.500 mol HCIO2 and 0.300 mol CIO2Na to enough water to make 1.00 L of solution. The Ka for chlorous acid, HClO2, is 1.2x10^-5. What is the pH for this buffered solution?

Agas is contained in a thick walled balloon when the pressure changes from 1.21 atm to 2.52 the volume changes from 3.75 l to 1.72 l and the temperature change from 293k to blank k

What is a possible quantum number set for an electron in the 3s orbital of a magnesium atom

The bond energy for the van der waals bond between two helium atoms is 7.9×10−4ev. assuming that the average kinetic energy of a helium atom is (3/2)kbt, at what temperature is the average kinetic energy equal to the bond energy between two helium atoms