The electrons move<span> around the protons, which are at the center of the atom. </span>How does the energy of an electron change when the electron moves closer to the nucleus<span>? ... When an </span>electron moves<span> from a lower to a higher </span>energy<span> level, the</span>electron<span>...</span>
Answer:
52.79 dm3 of SO2 will be produced when 975kJ/mol of heat are liberated.
Explanation:
In the reaction given;
2PbS(s) + 3O2(g) 2PbO(s) + 2SO2(g) H = -827.4 kJ/mol
-827.4 kJ/mol of heat liberates 2 moles of SO2 in the reaction involving lead and oxygen
At STP, -827.4 kJ/mol of heat liberate 22.4 * 2 dm3 of SO2
So therefore, 975 kJ/mol of heat will liberate
= 975 * 22.4 * 2 / -827.4
= 43 680 / -827.4
= 52.79 dm3 of SO2.
52.79 dm3 of SO2 will be produced at STP if 975 kJ/mol of heat are liberated.
Answer:
See attachment for mechanism.
Explanation:
The Fischer esterification reaction is a nucleophilic substitution <u>in the acyl group of a carboxylic acid, catalyzed by an acid.</u>
1) The protonation of the oxygen of the carbonyl group activates the carboxylic acid...
2) ... against a nucleophilic attack by the alcohol, and produces a tetrahedral intermediate.
3) The transference of a proton from an oxygen atom to another produces a second tetrahedral intermediate and converts the -OH into a good leaving group.
4) The loss of a proton and the expulsion of H₂O regenerates the acid catalyzer and gives an ester as a product.
Answer:
I think the answer is To describe an object’s motion, you must have a distance, km, mm, m, a speed, and time to show how long, seconds, mins, hours, days.
Explanation:
hope this helps
