Answer:- B. It's a dilute strong base.
Explanations:- The given concentration of calcium hydroxide is 0.02 M which is low means it is diluted. It has hydroxide ions which means it's a base. If it dissociates completely then it's a strong base. The dissociation equation is written as:
So, the correct option is B) It's a dilute strong base.
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1 Pascal is equal to 0.008 Torr. So if you have 234 kilopascals, then
234 kilopascals ( 1000 Pascals/ 1 kilopascals) (0.008 Torr / 1 Pascal) = 1,872 Torr
<u>Answer:</u> The mass percent of water in the original air sample is 4.16 %
<u>Explanation:</u>
We are given:
Volume of moist air = 12.0 L
Volume of dry air = 11.50 L
Volume of water lost = (12.0 - 11.50) L = 0.50 L
Here, the percent by mass ratio will be equal to the percent by volume ratio as the number of moles is directly related to the volume.
To calculate the volume percentage of water in the air, we use the equation:
Putting values in above equation, we get:
Hence, the mass percent of water in the original air sample is 4.16 %