Concept explainers
Interpretation:
The number of chloride ions in 10.75 g of magnesium chloride should be calculated.
Concept introduction:
The number of moles of a compound is defined as the ratio of the given mass of the compound to the molar or molecular mass of the compound.
The mathematical expression is given by:
Number of moles =
The one mole of any substance is equal to the
Answer to Problem 147A
Number of chloride ions =
Explanation of Solution
The given compound is magnesium chloride.
The molecular formula of magnesium chloride =
The molar mass of
=
Mass of
Number of moles of
=
Or,
Number of moles of
=
Number of chloride ions =
=
=
Chapter 10 Solutions
Glencoe Chemistry: Matter and Change, Student Edition
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