(a)
Interpretation : The mass of one mole of iron, copper, sulfur, and mercury is to be calculated.
Concept Introduction : Mole concept is the method used to define the amount of a compound and the value of 1 mole is
(a)
Answer to Problem 114A
Mass of 1 mole iron
Mass of 1 mole sulphur
Mass of 1 mole copper
Mass of 1 mole mercury
Explanation of Solution
Atomic weight of iron
Atomic weight of sulphur
Atomic weight of copper
Atomic weight of mercury
Moles of solute is the ratio of the mass of a compound to the atomic/molecular mass of that compound.
The expression for moles is as follows:
So, 1 mole of any compound contains mass in grams equal to that of its atomic or molecular weight. Hence, the mass of 1 mole of the given compounds is as follows:
Mass of 1 mole iron
Mass of 1 mole sulphur
Mass of 1 mole copper
Mass of 1 mole mercury
(b)
Interpretation : The number of atoms of iron, sulfur, and mercury present is to be calculated.
Concept Introduction : Mole concept is the method used to define the amount of a compound and the value of 1 mole is
(b)
Answer to Problem 114A
One mole of iron, copper, sulfur, and mercury all contain
Explanation of Solution
Mole concept is the method used to define the amount of a compound and the value of 1 mole is
(c)
Interpretation : The number of moles contained by
Concept Introduction : Mole concept is the method used to define the amount of a compound and the value of 1 mole is
(c)
Answer to Problem 114A
Moles of iron
Moles of sulfur
Moles of copper
Moles of mercury
Explanation of Solution
Atomic weight of iron
Atomic weight of iron
Atomic weight of copper
Atomic weight of iron
Mass of iron, copper, sulfur, and mercury present is
Moles of solute is the ratio of the mass of a compound to the atomic/molecular mass of that compound.
The expression for moles is as follows:
Substitute
Substitute
Substitute,
Substitute,
Chapter 16 Solutions
Chemistry 2012 Student Edition (hard Cover) Grade 11
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