Concept explainers
Complete Table 10.3.
Interpretation: The mass and number of particles in 3.65 moles of magnesium needs to be determined.
Concept Introduction: The mole concept provides the relation between moles, mass and molar mass. The mathematical expression of mole concept can be written as:
1 mole of any substance contains
Answer to Problem 111A
Explanation of Solution
Moles given = 3.65 moles
Molar mass of Mg = 24.0 g/mol
1 mole =
Calculate number of atoms:
Calculate mass:
Interpretation: The moles and number of particles in 29.54 g of Chromium needs to be determined.
Concept Introduction: The mole concept provides the relation between moles, mass and molar mass. The mathematical expression of mole concept can be written as:
1 mole of any substance contains
Answer to Problem 111A
Explanation of Solution
Mass of Cr = 29.54 g
Molar mass of Cr = 52.0 g/mol
1 mole =
Calculate moles:
Calculate number of atoms:
Interpretation: The mass and number of particles in 0.568 moles of Arsenic needs to be determined.
Concept Introduction: The mole concept provides the relation between moles, mass and molar mass. The mathematical expression of mole concept can be written as:
1 mole of any substance contains
Answer to Problem 111A
Explanation of Solution
Moles given = 0.568 moles
Molar mass of As= 74.9 g/mol
1 mole =
Calculate number of atoms:
Calculate mass:
Chapter 10 Solutions
Glencoe Chemistry: Matter and Change, Student Edition
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