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mezya [45]
3 years ago
9

A cup of black coffee has a pH of 5. What is the hydrogen Ion

Chemistry
1 answer:
alexandr1967 [171]3 years ago
8 0
<span>pH = -log(H+ concentration)
so pH = -log(1.0 X 10^4)
</span><span>10^-4?
</span>
If this helped and you have any other questions, feel free to comment on my wall. Hope this helped.
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Answer:

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Explanation:

The question asks what happens at 0°C, as pressure is increased from 0atm to 10atm.

According to the question, the temperature is held constant.  The pressure changes.  In the phase diagram, we find the temperature 0°C on the horizontal axis, and all points where the temperature are 0°C are along that vertical line.

Since the pressure starts at 0atm and increases to 10atm, we start at the bottom, and move upward along that line, to see what phases of matter the substance changes to.

At the bottom, it is initially in a "gas" phase.  As it moves up, it transitions to a "solid" phase.  Later, as it continues moving up, it changes again into a "liquid" phase.

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<h3>What is pressure?</h3>

Pressure can be defined as a measure of the force exerted per unit area of an object or body. Thus, it is usually measured in Newton per meter square.

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Read more on pressure here: brainly.com/question/24827501

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Explanation:

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