1
A light has wavelength 333 pm. It exposed to Cs surface in electric cell. It found that ejected e- moving by maximum kinetic energy 1.23 aJ. Calculate the wavelength for ejected e- out of Cs surface.
2
What is the wavelength of photon emitted during a transition from ni=7 to ni=2 state in hydrogen.
3
The velocity is measured of 3.45x(10^3) m/s. Found that the uncertainty is 0.001%. Calculate the uncertainty of electron position.
4
Determine the magnetic moment and type of Cr.
5
Which one is true ?
7
Which one is true for "sp3d2" ?
8
Calculate vapor pressure of solution. By dissolving 200 g of glucose in 400 mL of water at 30°C (31.82 mmHg). What is the vapor pressure lowering of solution ?
9
What is the value of van't hoff factor in 5000 g Nacl for 500 cm^3 of water. If the solution has boiling point of 297.6°C. (Determine kb=0.52 °c/m)
10
A solution is prepared by dissolving 30.0 g of hemoglobin in water to make up 1L in volume. If osmotic pressure of solution is 10.0 mmHg at 25°C. Calculate molar mass of hemoglobin.
