Answer: option C) II < III < I
i.e [OH−] < [H3O+] < I
Explanation:
First, obtain the pH value of I and II, then compare both with III.
For I
Recall that pH = -log (H+)
So pH3O = -log (H3O+)
= - log (1x10−5)
= 4
For II
pOH = - log(OH-)
= - log(1x10−10)
= 9
For III
pH = 6
Since, pH range from 1 to 14, with values below 7 to be acidic, 7 to be neutral, above 7 to be alkaline: then, 9 < 6 < 4
Thus, the following solutions from least acidic to most acidic is II < III < I
Answer:
4,320 minutes
Explanation: There are 24 hours in a day and 60 minutes make up an hour, so just do the math there and it gives you your answer!
The ideal gas law relates to the pressure, volume, and temperature of the gas. The volume of the gas bubble at 99.3 kPa is 73.47 mL.
<h3>What is Boyle's law?</h3>
The inverse relationship between the pressure and the volume of the gas at constant temperature is given by Boyle's law. The formula for the Boyle's law is given as:
Given,
Initial pressure = 1.60 atm
Initial volume =45.0 mL
Final pressure = 0.98 atm (1 atm = 101.325 kPa)
The final volume is calculated as:
1.60 * 45 = 0.98 * V
V = 73.47 mL
Therefore, the volume of the gas bubble is 73.47 mL.
Learn more about Boyle's law here:
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Answer:
the cost of pizza for 15 people is $73.9
Explanation:
a pizza party for 15 and each person will eat 4 slices.
meaning the 15 people will eat 4 x 15 = 60 slices
- Since each pizza will cost you $14.78 and will be cut into 12 slices.
- `1 pizza = 12 slices = $ 14.78
- 60 slices = (14.78 x 60) / 12 = 886.8 /12 = $73.9
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