A sample of kerosene has a mass of 36.4g. It’s volume is 45.6mL. What is the density of kerosene?
1 answer:
Answer:
<h2>Density = 0.8 g/cm³</h2>Explanation:
The density of an object can be found using the formula
<h3>From the question
mass of kerosene = 36.4 g
volume of kerosene = 45.6 mL
To find the density substitute the values into the above formula and solve
We have
<h3>= 0.7982
We have the final answer as
<h3>Density = 0.8 g/cm³</h3>Hope this helps you
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Explanation:
Assuming that moles of nitrogen present are 0.227 and moles of hydrogen are 0.681. And, initially there are 0.908 moles of gas particles.
This means that, for
moles of + moles of
= 0.908 mol
Since, 2 moles of =
= 0.454 mol
As it is known that the ideal gas equation is PV = nRT
And, as the temperature and volume were kept constant, so we can write
=
=
=
= 5.2 atm
Therefore, we can conclude that the expected pressure after the reaction was completed is 5.2 atm.