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Define the an acid/base according to the Bronsted-Lowry and Lewis theories. Support with equation to illustrate an acid-base reaction for each theory, identifying them clearly. Also state the bond type formed in an Lewis acid-base reaction.
Bronsted-Lowry theory: Acid is a proton donor (H + ) and base is a proton acceptor, i.e NH 3 (aq) + H 2 O (l) ⇌ NH 4 + (aq) + OH - (aq) (In the left hand side, the H 2 O is donating a proton thus is the acid...
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Butan-2-ol cannot be directly converted to 1,2-dibromobutane. The conversion can be carried out in two stages by first converting butan-2-ol into X, which is then reacted with bromine.(continued in answers)
butan-2-ol --?→ X --Br 2 → 1,2-dibromobutane(a) State the name and draw the structural formula of X(b) State an equation and the conditions needed for the conversion of butan-2-ol into X.(c) Describe the mec...
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Explain the change in first ionisation energy across period 2
Ionisation energy increases overall because nuclear charge increases with no significant increase in shielding, so it becomes more difficult to remove the outer electron.Ionisation energy decreases going fro...
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List the three characteristic properties of reactant particles which affect the rate of reaction as described by the collision theory.
The frequency of collisionskinetic energy of particlescollision geometry (orientation)
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Calculate: (a) The amount, in mol, of white phosphorus used, (b) the limiting reagent, (c) the excess amount, in mol, of the other reagent.
P 4 (s) + 3OH - (aq) + 3H 2 O(l) ---> PH 3 (g) + 3H 2 PO 2 - (aq) Provided for answering (a): Mass of white phosphorus: 2.478g Provided for answering (b): Volume of aqueous sodium hydroxide: 100cm 3 Conce...
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