Internal means inside and external means outside
<u>The mass of hydrogen atoms in the sample of water is 3.98g</u>
This can be solved by understanding of Avogadro's number and mole relationship concept.
<h3 /><h3>Avogadro's number</h3>
<u>This is a proportionality that relates the number of particles to the amount of substance in that sample and it is given as </u>
A molecule of water have the chemical formula as HO. This implies that for every 1 atom or molecule of oxygen, 2 hydrogen must be present.
In the question given, we have atoms of oxygen. This implies we must have
Now, let's compare this molar mass - Avogadro's number
molar mass of hydrogen = 1g/mol
From the calculation above, we would have 3.98g of hydrogen present in that particles of oxygen.
learn more on Avogadro's concept
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Answer:
71.5 atm
Explanation:
Use Boyle's Law and rearrange formula.
- Hope this helps! Please let me know if you need further explanation.
In order to calculate the final volume of the gas, we may apply Charles Law, which states that for a fixed amount of gas subject to a fixed amount of pressure, the volume and temperature of a gas are directly proportional. This is:
V/T = constant
Using this equation,
5/298 = V/278
V = 4.66 L
The final volume of the gas is 4.66 liters