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25cm3 of NaOH (2M) were titrated with 1.25M H2SO4. Write down the balanced reaction equation. Calculate the number of moles of NaOH used in the titration and hence deduce the volume of sulfuric acid used in the titration. Give your answer in dm3.

2NaOH + H2SO4 -> 2H2O + Na2SO4. moles = concentration x volume. #moles NaOH = 2M x (25/1000)dm3 = 0.05 mol. The reaction equations shows the ratio of alkali to acid is 2:1. The number of moles of H2SO4...

Answered by Tiffany W. • Chemistry tutor

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balance this equation C8H18 + O2 ---> CO2 + H2O

First split the equation in half. write down the number of each element there is on either side and then see how many more of that atom you need. make sure that there is the same number of carbons oxygens...

Answered by Meherun C. • Chemistry tutor

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Why is Copper used in cooking equipment and wiring?

Copper is a metal, it therefore has delocalised electrons, i.e. e- which have come away from the atom, which can move through the solid metal allowing it to conduct heat and electricity. Other properties ...

Answered by Oliver G. • Chemistry tutor

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Explain how crude oil is separated into fractions (6 marks)

Crude oil is separated into fractions in a process called fraction distillation. The crude oil mixture is separated in a distillation column. The column is hot at the bottom and cool at the top. Fractiona...

Answered by Rowena G. • Chemistry tutor

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