10.0g of a mixture of sodium hydroxide and sodium chloride were dissolved in water. This mixture was titrated with sulfuric acid of concentration 0.500 mol dm-3. 52.10cm^3 of the acid was required for neutralisation. The equation as follows of:
2NaOH + H2SO4 ---> Na2SO4 + 2H2O
1) Calculate the number of moles of sulfuric acid required for neutralization 2)Hence deduce the number of moles of sodium hydroxide in the solution 3)Calculate the mass of sodium hydroxide 4) Hence find the percentage of sodium hydroxide in the original sample
I have done this paper so many times but never understood why it's 18 electrons, getting really confused.
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The number of electrons in a molecule depends on the number of electrons in every single atom of the molecule (also the ones which are exist more than once).*
Carbon (C) has 6 electrons, Hydrogen (H) has one electrons and this atom exists thrice, Fluorine has nine ones. That is why:*