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How many millitres of 0.480M NaOH would be required to titrate a 5.00ml solution of 0.320M H2SO4? Report answer to the correct number of significant figures.

1) How many millitres of 0.480M NaOH would be required to titrate a 5.00ml solution of 0.320M H2SO4? Report answer to the correct number of significant figures.

2) Write a balanced equation for the combustion of octane, C8H18.

3) If the standard enthalpy of formation (ΔHf) of methanol, CH3OH, is
-238.6kJ/mol, ΔHf(CO2(g))= -394kj/mol, and ΔHf(H20(l))= -286kJ/mol, calculate the standard heat of combustion of methanol.

Report the answer to the correct number of significant figures.

4) If a gas sample absorbs 89kJ of heat and does 120 kJ of work, what is the change in itd internal energey? Report your answsers to the correct number of significant figures.

5) What is the wavelength of a photon of electromagnetic radiation having a photon energy of 4.56X10^-19 J? Report your answer in nanometers, to the correct number of significant figures.

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  • Category:- Chemistry
  • Reference No.:- M9406319

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