Predict whether the entropy change of the system in each of the following proces
ID: 989656 • Letter: P
Question
Predict whether the entropy change of the system in each of the following processes is positive or negative. 4Fe(s) + 3O_2(g) rightarrow 2Fe_2O_2(s) Ag^+(aq) + CI^-(aq) rightarrow AgCI(s) H_2O^l) rightarrow H_2O(s) 2SO_2(g) + O_2(g) rightarrow 2SO_2(g) A solution is prepared that is 0.0036 M NaOH. Determine the following (include the formula used to arrive at the answer and units where appropriate). the hydroxide ion concentration of the solution the hydronium ion concentration of the solution the pOH of the solution the pH of the solution Calculate the hydronium ion concentration and the pH of a 0.40 M HF solution. (K_s = 7.2 times 10^-4). As part of your answer, write a chemical equation showing the relevant equilibrium.Explanation / Answer
18.
A)
7 mol of solids are forming 2 mol of ordered crystals, dS < 0
B)
2 ions are forming 1 crystal mol, dS < 0
C)
liquid turns to ordered solids, ds <0,
D)
3 mol of gas for 2 mol of gas < 0
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