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Effectus [21]
3 years ago
11

HELP FAST PLEASE + THANKS! Will mark brainliest!!

Chemistry
1 answer:
Svetach [21]3 years ago
7 0

HERES YOUR ANSWER

  its option C) ana option E)

                             HOPE IT HELPS⊂(↑-↑⊂)

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Under what condition is phase rule applied​
Pavel [41]

Answer:

Under the equilibrium condition

Explanation:

according to the phase rule given by Willard Gibbs, under the condition where the equilibrium between the number of phases is not affected by the gravity, electricity magnetic force or by surface action and the system is under constant temperature, pressure and concentration then the degrees of freedom(F) is proportional to the concerntration (C) and the Phases(P) at equilibrium condition.  

the expression is given as : F= C-P+2

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3 years ago
2. How many orbitals are in the following sublevels?
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This answer would be a
6 0
3 years ago
How will the concentration of H+ and OH− ions change when a substance with a pH 11.4 is added to water?
Anna35 [415]

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option d is the answer

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3 0
3 years ago
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4 0
3 years ago
A solution is prepared by dissolving 0.24 mol of butanoic acid and 0.25 mol of sodium butanoate in water sufficient to yield 1.0
beks73 [17]

Answer:

Butanoic acid present in solution

Explanation:

In this case, we have a buffer solution of butanoic acid and sodium butanoate.  In other words a reaction like this:

HC₄H₇O₂ + H₂O <------> C₄H₇O₂⁻ + H₃O⁺   Ka = 1.5x10⁻⁵

The low value of Ka means that this is a weak acid. So, after this, the NaOH is added to the solution.

The NaOH is a really strong base, so we might expect that the pH of the solution increase drastically, however this do not occur.

The reason for this is because the first thing to happen in this reaction is an acid base reaction.

The NaOH react with the butanoic acid still present in solution, because is a weak acid, so in solution, this acid is not completely dissociated into it's respective ions. So the butanoic acid reacts with the NaOH and the products:

HC₄H₇O₂ + NaOH <------> Na⁺C₄H₇O₂⁻ + H₂O

So, because of this, the pH increase but not much.

6 0
3 years ago
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