(a)
Interpretation: To determine the mass of the compound.
Concept Introduction: Mass percentage can be determined by the ratio of mass of the element and the mass of the compound which can be written as:
(a)
Answer to Problem 74A
The mass of sulphur atom will be 3.33 gram.
Explanation of Solution
The given compound is
Mass of hydrogen atom = 2 g/mol
Mass of sulphur atom = 32 g/mol
Mass of
The mass of percentage can be determined by using the formula:
Put the given data in the above equation.
The number of grams of sulphur atom can be determined as:
Therefore, the mass of sulphur atom will be 3.33 gram.
(b)
Interpretation: To determine the mass of the compound.
Concept Introduction: Mass percentage can be determined by the ratio of the mass of the element and the mass of the compound which can be written as:
(b)
Answer to Problem 74A
The mass of nitrogen atom will be 5.6 gram.
Explanation of Solution
The given compound is
The molecular mass of
The molar mass of hydrogen atom = 1 g/mol
The molar mass of oxygen atom = 16 g/mol
The molar mass of nitrogen atom = 14 g/mol
The molar mass of carbon atom = 12 g/mol
Mass of the percentage can be determined by using the formula:
Put the given data in the above equation.
Therefore, the number of grams of nitrogen atom can be determined as:
Therefore, the mass of nitrogen atom will be 5.6 gram.
(c)
Interpretation: To determine the mass of the compound.
Concept Introduction: Mass percentage can be determined by the ration of mass of element and mass of the compound which can be written as:
(c)
Answer to Problem 74A
The mass of Mg atom will be 39.93 gram.
Explanation of Solution
The given compound is
Mass of
Mass of oxygen atom =32 g/mol
Mass of hydrogen atom = 2 g/mol
Mass of
Mass of percentage can be determined by using the formula:
Put the given data in the above equation.
Therefore, the number of grams of Mg atom can be determined as:
Therefore, the mass of Mg atom will be 39.93 gram.
(d)
Interpretation: To determine the mass of the compound.
Concept Introduction: Mass percentage can be determined by the ration of mass of element and mass of the compound which can be written as:
(d)
Answer to Problem 74A
The mass of P will be 14.4 g.
Explanation of Solution
The given compound is
Mass of Na atom = 69 g/mol
Mass of oxygen atom =64 g/mol
Mass of P atom = 31 g/mol
Mass of
Mass of percentage can be determined by using the formula:
Put the given data in the above equation.
Therefore, the number of grams of P atom can be determined as:
The mass of P will be 14.4 g.
Chapter 10 Solutions
Chemistry 2012 Student Edition (hard Cover) Grade 11
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