Complete the formula. density = _____ weight/volume weight/length mass/length mass/volume
2 answers:
Answer: Option (d) is the correct answer.
Explanation:
Density is defined as mass per unit volume.
Mathematically,
where d = density
m = mass
v = volume
Density is also known as degree of compactness, that is, more closely the atoms are linked more will be the mass of object or atom. Hence, more will be its density.
Thus, we can conclude that
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A gas produced in a chemical reaction can be collected by water displacement. Because the gas is collected over water, it is not pure but is mixed with vapor from the evaporation of the water. Dalton's law can be used to calculate the amount of the desired gas by subtracting the contribution of the water vapor.
Answer:
The answer is
<h2>12,574,750.83 moles</h2>Explanation:
In order to find the moles of CO2 we use the formula
where n is the number of moles
N is the number of entities
L is the Avogadro's constant which is
6.02 × 10²³ entities
From the question
N = 7.57 × 10^30 molecules of CO2
We have
We have the final answer as
<h3>12,574,750.83 moles</h3>Hope this helps you