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Describe the changes in equilibrium of ethanol production from ethene and water (enthalpy of reaction is ∆H = - 46 kJ/mol) when: (a) a high pressure is applied; (b) ethanol concentration is increased; (c) temperature is increased; (d) a catalyst is used.

The equation for the reaction (would be given for this type of question but I ran out of space): C 2 H 4 (g) + H 2 O (g) ⇌ C 2 H 5 OH (g) ∆H = - 46 kJ/molQuestion is based on Le Chatelier's principle: if a s...
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Answered by Aiste A. • Chemistry tutor
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Using principles of structure and bonding, explain why sulfur has a higher melting point than phosphorus

Sulfur, which is naturally S 8 has more electrons than Phosphorus, which is naturally P 4 . Therefore the Van der Waals between molecules is stronger in Sulfur than it is in Phosphorus, so more energy is req...
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Answered by Dalvin S. • Chemistry tutor
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What is an ionic bond?

An ionic bond is the electrostatic force of attraction between two or more oppositely charged ions , formed by the transfer of electrons .
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Answered by Gunchit S. • Chemistry tutor
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Describe what happens when two atoms of potassium react with one atom of sulfur giving your answer in terms of electrons.

Electrons are transferred from potassium to sulfur. Two potassium atoms each lose one electron forming K+ / 1+ ions. Sulfur atoms gain 2 electrons forming S2- / 2- ions.
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Answered by Sabrine H. • Chemistry tutor
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What is the limiting reagent and thus the mass of product for the reaction: P4O10 + 6H2O --> 4H3PO4 if 5.00 g of P4O10 react with 1.50 g of water?

1) Determine the moles of each reactant and thus the limiting reagent: # moles= mass (g)/M r . M r of P 4 O 10 = (4 x 30.97) + (10 x 16.00) = 283.88 g mol -1 . Moles of P 4 O 10 = 5.00/283.88 = 1.76 x 10 -2 ...
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Answered by Elise W. • Chemistry tutor
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