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chamistry

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chamistry
calculate the pH pOH and (OH(aq)) of 0.006mol/l HI(aq)

CHAMISTRY
how many moles of potassium chloride in a 2.40L solution with a milarity of 1.35

chamistry
how do you calculate the mole fraction of HCl in an acqueous solution that contains 33.6% HCl by mass?

chamistry
The vacancy fraction of a particular metal is found to double as the temperature of the metal is increased from 700 degrees C to 850 degrees C. Calculate the enthalpy of vacancy formation for this metal. Express your answer in units of eV.

chamistry
formula: 2Cl- ==> Cl2 + 2e- in one experiment, the volume of chlorine gas formed was 18cm3. i) calculate the amount, in moles, of chlorine gas in 18cm3.(the volume of 1 mol of a gas at room temperature and pressure is 24000) ii) calculate the quantity of electricity, in ...

Chamistry
I am currently doing a lab write up and i have a little problem with some ionic equations the question goes as follows: You are provided with aqueous solutions of CaCl2, AlCl3, ZnCl2, CuCl2, FeCl2 and FeCl3 in six separate test tubes. To each of the solutions add 2-3 drops of ...

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