The pH of the solution is 4.38.
<h3>What is the pH?</h3>
The first thing that we must do is to set up the ICE table for the reaction as shown;
Given that;
HA = 1.8 M
HA(aq) + H2O(l) ⇔ H3O^+(aq) + A^-(aq)
I 1.8 0 0
C - x +x +x
E 1.8 - x x x
K = [H3O^+] [A^-]/[HA]
9.55 × 10^−10 = x^2/0.0158 - x
9.55 × 10^−10(1.8 - x ) = x^2
1.719 * 10^-9 - 9.55 * 10^-10x = x^2
x^2 + 9.55 * 10^-10x - 1.719 * 10^-9 = 0
x=0.000041 M
pH = -log(0.000041 M)
pH = 4.38
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Answer:
a rain of asteroids coming from space
Explanation:
Answer:
Liquid
Explanation:
Gas is too far away, solid is close but it is not in a random pattern
Answer: 5.18
Explanation:
Mathematically, pOH is expressed as
pH = -log(OH-)
where OH-is the concentration of hydroxide ion
So, pOH calculations are as follows
pOH = -log(1.50x10-9 M)
pOH = -(-8.82)
pOH = 8.82 [the two minus signs cancelled out]
Since pOH = 8.82; apply the formula
pH + pOH = 14 to get pH of the solution
Hence, pH + pOH = 14
pH + 8.82 = 14
pH = 14 - 8.82
pH = 5.18
Thus, the pH of a solution with a 1.50x10-9 M hydroxide ion concentration is 5.18 (slightly acidic)
<span> Magnesium chloride is the answer to this question
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