It was mentioned that you should not expect the pH of distilled water to be 7.00 as ordinarily measured in the laboratory. What
1 answer:
Answer:
Carbon dioxide
Explanation:
<em> laboratory to have a pH of less than 7.0.</em>
Carbon (IV) oxide in the atmosphere is capable of dissolving into the distilled water to form a weak acid. Any pH that is less than 7.0 is acidic while any pH above 7.0 is alkaline or basic.
First, the carbon (IV) oxide enters the water through an equilibrium with the atmosphere:
Thereafter, aqueous carbon (IV) oxide can then react with water to form a weak carbonic acid:
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Answer:
The gas will occupy a volume of 1.702 liters.
Explanation:
Let suppose that the gas behaves ideally. The equation of state for ideal gas is:
(1)
Where:
- Pressure, measured in kilopascals.
- Volume, measured in liters.
- Molar quantity, measured in moles.
- Temperature, measured in Kelvin.
- Ideal gas constant, measured in kilopascal-liters per mole-Kelvin.
We can simplify the equation by constructing the following relationship:
(2)
Where:
,
- Initial and final pressure, measured in kilopascals.
,
- Initial and final volume, measured in liters.
,
- Initial and final temperature, measured in Kelvin.
If we know that ,
,
,
and
, the final volume of the gas is:
The gas will occupy a volume of 1.702 liters.