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goldfiish [28.3K]
3 years ago
12

Which of the following is an example of acceleration? 88m/s, 15km/hr,14m/s East, 9.8 m/s^2 south

Chemistry
1 answer:
Mariana [72]3 years ago
5 0

Answer: The answer is 9.8 m/s^2 south

Explanation:

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The pOH of a solution of KOH is 11.30. What is the [H*] for this solution?​
Sloan [31]

Answer: The concentration of hydrogen ions for this solution is 1.99 \times 10^{-3}.

Explanation:

Given: pOH = 11.30

The relation between pH and pOH is as follows.

pH + pOH = 14

pH + 11.30 = 14

pH = 14 - 11.30

= 2.7

Also, pH is the negative logarithm of concentration of hydrogen ions.

pH = - log [H^{+}]

Substitute the values into above formula as follows.

pH = -log [H^{+}]\\2.7 = -log [H^{+}]\\conc. of H^{+} = 1.99 \times 10^{-3}

Thus, we can conclude that the concentration of hydrogen ions for this solution is 1.99 \times 10^{-3}.

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3 years ago
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<h3>What is the rate of chemical reaction?</h3>

The rate of a chemical reaction refer to the rate of change in concentration of the reaction over the change in time. Introduction.

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Learn more about rate of chemical reaction here.

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How many moles of O₂ are needed to react completely with 35.0 mol of FeCl₃? *
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Answer:

52.5 mol O2

Explanation:

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x= (35.0 mol FeCl3 * 6 mol O2)/4 mol FeCl3

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