(a)
Interpretation:
The mass of the oxidized tin foil should be calculated..
Concept introduction:.
The number of moles of a substance is related to mass and molar mass as follows:.
Here,mis mass andMis molar mass of the substance..
Also, according to
The molarity of a solution is defined as number of moles of solute in 1 L of the solution. It is mathematically represented as follows:.
Here, n is number of moles of solute and V is volume of solution in L. Thus, the unit of molarity is mol/L.
(b)
Interpretation:
The volume of the air required to completely react with the tin foil should be calculated..
Concept introduction:.
The number of moles of a substance is related to mass and molar mass as follows:.
Here,mis mass andMis molar mass of the substance..
Also, according to Avogadro’s law in 1 mol of a substance there are
The molarity of a solution is defined as number of moles of solute in 1 L of the solution. It is mathematically represented as follows:.
Here, n is number of moles of solute and V is volume of solution in L. Thus, the unit of molarity is mol/L.
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Chapter 3 Solutions
Chemistry: Principles and Reactions
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