Answer:
If pressure increases, then volume decreases and vice versa, when temperature is held constant.” When pressure increases, the same number of molecules, or matter, are being forced closer together to occupy a shrinking space, their volume decreasing while their density correspondingly increases.
Explanation:
Answer:
A sound wave is the pattern of disturbance caused by the movement of energy traveling through a medium (such as air, water, or any other liquid or solid matter) as it propagates away from the source of the sound. The source is some object that causes a vibration, such as a ringing telephone, or a person's vocal chords.
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Answer:
The correct volume of 42.3% w/w H₂SO₄ is 50,1 mL
Explanation:
In order to know the correct volume of 42.3% w/w H₂SO₄ needed, we need to know the <u>mass</u> of H₂SO₄ that is needed. We'll use the wanted concentration, the final volume and the molecular weight of sulphuric acid, thus:
2,7 M * 0,1 L * 98,079 g/mol = 26,48 g of sulphuric acid are needed.
Now we can calculate the correct volume, using the concentration of the available solution, and the density of said solution, thus:
We would then need to measure 50,1 mL (rounded up) of 42.3% w/w H₂SO₄ with the graduated cylinder, and then add it to the volumetric flask.