Consider the following chemical equilibrium: Now write an equation below that shows how to calculate from for this reaction at a
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The volume of the solution is given below which can be calculated using the molarity formula as 2.18 litres.
<h3>Define the molarity of a solution.</h3>Molarity (M) is the amount of a substance in a certain volume of solution. Molarity is defined as the moles of a solute per litres of a solution.
Given data:
M= 0.420M
mass = 64.0 grams
Molar Mass= 74g/mol
To find:
The volume of solution=?
The calculation for a number of moles:
n=
n=
n= 0.91 moles
Molarity=
V=
V= 2.1768 litres
Thus, the volume of the solution is 2.18 litres.
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Answer : The chemical formula of pure substances are different from those of mixtures because all the matter that exists on earth can be classified into two categories namely; pure substances and mixtures.
A pure substance always consists of a single element or compound. Example Oxygen is formed only of oxygen (O) atoms; whereas the table salt which is formed only by sodium chloride (NaCl) molecules is a compound which is made up of pure elements. A pure substance cannot be further divided into its components.
A mixture is made up of different compounds and/or elements. It can be easily separated using any physical method. Example, sand, salt and saw dust mixed together as a mixture. Also, it will not have a definite chemical formula.
Please refer the attachment for better understanding.
