অক্সিজেন একটি `1 L` ফ্লাস্কে `7.6xx10^(-10)mm Hg` চাপে উপস্থিত থাকে। গণনা করুন

Oxygen is present in a 1 L flask at a pressure of 7.6xx10^(-10)mm Hg . Calculate the number of oxygen molecules in the flask at 0^(@)C .

If oxygen is present in 1 L flask at a pressure of 7.6xx10^(-10) mm Hg then the number of oxygen molecules in the flask at 0^(@) C will be

Number of molecules: What is the number of molecules in a diatomic gas present in 1 L flask at 0^(@) C and under a pressure of 7.6xx10^(-19) mm Hg ? Strategy : Express the pressure in atmosphers and use Eq.(1.10) to calculate the number of moles. Using Avoagdro's constant,find the number of molecules.

The racemisation of alpha - pinene is first order reaction. In the gas the specific reaction rate was found to be 2.2 xx 10^(-5)mm Hg^(-1)  at 457.6 K and 3.07 xx 10^(-3) mm Hg^(-1) at 510.1 K. The energy of activation is

1/7 xx 1/3 + 1/5 xx 10/3 - 5/6

When 25 g of a non-volatile solute is dissolved in 100 g of water, the vapour pressure is lowered by 2.25xx10^(-1)mm of Hg. What is the molecular weight of the solute? [ P^(@)= 17.73 mm]

Henry's law constan for the solubility of methane in benzene is 4.27 xx 10^(-5) mm^(-1) Hg mol dm^(-3) at constant temperature .Calculate the solubility of methane at 760 mm Hg pressure at same temperature .

Identify the reaction order form each of the following rate constants: a. k = 7.06 xx 10^(-3) mol L^(-1) s^(-1) b. k = 5.6 xx 10^(-5) s^(-1) c. k = 1.25 xx 10^(-2) mol^(-1)l s^(-1) d. k = 1.25 xx 10^(-2) mol L^(2)s^(-1) e. k = 5.0 xx 10^(-6) atm^(-1)s^(-1)