What is the pH of a 1.0 x 10-3 M KOH solution?
A. 10
B. 4.0
C. 11
D. 3.0

What Is The PH Of A 1.0 X 10-3 M KOH Solution?A. 10B. 4.0C. 11D. 3.0

Answers

Answer 1

Answer:

Option C. 11

Explanation:

We'll begin by calculating the concentration of the hydroxide ion [OH¯] in the solution. This can be obtained as follow:

In solution, KOH will dissociate as follow:

KOH (aq) <=> K⁺(aq) + OH¯(aq)

From the balanced equation above,

1 mole of KOH reacted to produce 1 mole of OH¯.

Therefore, 1×10¯³ M KOH will also react to produce 1×10¯³ M OH¯.

Thus, the concentration of hydroxide ion [OH¯] in the solution is 1×10¯³ M

Next, we shall determine the pOH of the solution. This can be obtained as follow:

Concentration of hydroxide ion [OH¯] = 1×10¯³ M

pOH =?

pOH = –Log [OH¯]

pOH = –Log 1×10¯³

pOH = 3

Finally, we shall determine the pH of the solution. This can be obtained as follow:

pOH = 3

pH =?

pH + pOH = 14

pH + 3 = 14

Collect like terms

pH = 14 – 3

pH = 11


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Answers

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Answer:

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Explanation:

here's the answer to your question

Do plants need soil to grow

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Answer:

Not all plants do need soil to grow

Explanation:

Not all plants need soil to grow. Some just do better in soil compared to other growing mediums. What plants need are minerals and nutrients, such as nitrogen, potassium, and phosphorous. Soil is an effective way of delivering those nutrients cost-effectively. You can also use alternative delivery systems like hydroponics, aeroponics, and aquaponics to achieve the desired effect. However, these are only suitable for growing shallow-rooted plants. Plants with deep roots will always need soil, as will larger plants with spreading roots.

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Answers

Answer:

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Explanation:

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Answer:

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Answer:

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Explanation:

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Answers

Answer:

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Explanation:

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Answers

Answer:

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Explanation:

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Answer:

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Explanation:

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Answer:

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Answers

Ca^2+ ion  is smaller than Mg^2+ ion hence it has a greater heat of formation or lattice energy.

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Answers

Answer:

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Answer:

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Answers

Solution :

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Answers

Answer:

See explanation

Explanation:

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what do y’all do when y’all brainly says “locked” and won’t show anymore answers !???

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Answer:

Create a new account as the thing you're experiencing now is due to the fact that Brainly had blocked your account.

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Answers

Answer:

62.5 moles of O₂.

Explanation:

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From the balanced equation above,

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Finally, we shall determine the number of mole of O₂ needed to react with 5 moles of C₈H₁₈. This can be obtained as shown below:

From the balanced equation above,

2 moles of C₈H₁₈ reacted with 25 moles of O₂.

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Which of the following is a scientific question you could ask about the game
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Answers

The scientific question related to the game of basketball is option D: "Do teams that practice more win more games?"

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To answer this question, researchers could collect data on the practice hours of different basketball teams and compare them to their corresponding game performance. Statistical analysis could be used to determine if there is a correlation between practice time and winning percentage or other performance metrics.

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Answers

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I just took it

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Answer:

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1

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ahagosmssjajjapaps

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a unit of mass used to express atomic and molecular weights, equal to one twelfth of the mass of an atom of carbon-12.

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