3 years ago

Who first determined the value of the avogadros number

Chemistry

1 answer:

Helen [10]3 years ago

4 0

Answer:

Jean Baptiste Perrin

Explanation:

i just looked it up

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Mass of one tablet = 20 mg

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Percent that is soluble in water = 40%

Mass of tablet that is soluble in water = $0.4\times 40=16\ \text{mg}$

So, mass of solute is $16\ \text{mg}$

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Volume of water = 1 L

So, mass of 1 L of water is $1\times 1=1\ \text{kg}=1000\ \text{g}$

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$\dfrac{\text{Mass of solute}}{\text{Mass of solvent}}\times 10^6=\dfrac{16\times 10^{-3}}{1000}\times 10^6\\ =16\ \text{ppm}$

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If 45.6 grams of water decompose at 301 Kelvin and 1.24 atmospheres, how many liters of oxygen gas can be produced? Show all of

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This reaction is called the electrolysis of water. The balanced reaction is:

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<span>
We are given the amount of water for the electrolysis reaction. This will be the starting point of our calculation.

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