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Name a suitable chemical used to convert propanol to propanoic acid?

Acidified Potassium Manganate(VII). Propanoic acid (which is a carboxylic acid) can be made by oxidising propanol (which is an alcohol). In this case, oxidation involves adding an oxygen atom and removing tw...
KG
Answered by Kate G. • Chemistry tutor
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Explain why Francium is the most reactive Group 1 element in terms of its electronic structure.

All group 1 elements have 1 electron in their outer shell, making this the electron that is involved in reactions. As you move down a group in the periodic table the number of shells increases, which means t...
JF
Answered by Jordan F. • Chemistry tutor
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Why is the first ionisation energy of barium larger than the first ionsiation energy of caesium?

Barium has one more proton than caesium. The outer electrons of both elements are in the same shell so they feel the same shielding effect. However, as barium has one more proton, barium's outer electrons wi...
JL
Answered by Jeremy L. • Chemistry tutor
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85 cm^3 of 0.05 mol/dm^3 sulfuric acid is used to neutralise 15 cm^3 of sodium hydroxide of an unknown concentration. Given that the chemical formula of the reaction is 2NaOH + H2SO4 => NA2SO4 + 2H2O, find the concentration of the sodium hydroxide.

Firstly, calculate the number of moles of sulfuric acid that reacts with the sodium hydroxide, using the equation; n = MV/1000 , where n is the number of moles, M is the concentration (in mol/dm 3 ), and V i...
JN
Answered by Joshua N. • Chemistry tutor
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pH and Kw question: A student dissolves 1.75g of a drain cleaner (based on NaOH) in water and makes the solution up to 100cm3. The student measures the solution pH as 13.60. Determine the percentage of NaOH in the drain cleaner, in terms of mass (g).

[H + ] = 10 -pH , so [H + ] = 10 -13.6 = 2.5 x 10 -14 moldm -3 . pH=-log 10 ([H + ]), so we have rearranged this to make [H + ] the subject of the formula. K w = [H + ] x [OH - ] = 1.0 x 10 -14 moldm -3 . Th...
LN
Answered by Laura N. • Chemistry tutor
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