(a)
Interpretation:
The mass of formed sodium chloride needs to be determined.
Concept Introduction: The compound is made up of two or more than two different elements. The compound mass is equal to the mass of both elements. If the compound is composed of only two types of elements, the mass of the compound is calculated by using this formula-
Mass of compound = Mass of element
(a)

Answer to Problem 13SSC
The mass of sodium chloride is
Explanation of Solution
Given information: Mass of sodium is
The mass of the product is calculated as −
Mass of sodium =
Mass of chlorine =
Mass of sodium chloride = Mass of sodium + Mass of chlorine
=
The mass of sodium chloride is calculated by the given mass of sodium and the mass of chlorine. For the mass of a compound, the mass of both elements is necessary.
(b)
Interpretation:
The mass of the compound Y needs to be determined.
Concept Introduction: The compound is made up of two or more than two different elements. The compound mass is equal to the mass of both elements. If the compound is composed of only two types of elements, the mass of the compound is calculated by using this formula-
Mass of compound = Mass of element
(b)

Answer to Problem 13SSC
The mass of compound Y
Explanation of Solution
Given information: Mass of compound X is
The mass of the product is calculated as −
Mass of compound = Mass of element
Mass of compound
Mass of sample Y = Mass of XY − Mass of sample X
The mass of sample Y is calculated by the given mass of sample X and the mass of compound XY. For the mass of a compound, the mass of both elements is necessary.
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