Principles of General Chemistry
3rd Edition
ISBN: 9780073402697
Author: SILBERBERG, Martin S.
Publisher: McGraw-Hill College
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Chapter 3, Problem 3.24P
Which of the following sets of information allows you to obtain the molecular formula of a covalent compound? In each case that allows it, explain how you would proceed (draw u road map and write a Plan for a solution)
(a) Number of moles of each type of atom in a given sample of the compound
(b) Mass % of each element and the total number of atoms in a molecule of the compound
(c) Mass % of each element and the number of atoms of one element in a molecule of the compound
(d) Empirical formula and mass % of each element
(e) Structural formula
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Give the empirical formula of each of the following compounds if a sample contains the following quantities of each element. (Type your answer using the format CO2 for CO2.)
(a) 0.0130 mol C, 0.0390 mol H, and 0.0065 mol O(b) 20.0 g C, 3.4 g H, and 26.6 g O(c) 52.1% C, 13.1% H, and 34.7% O by mass
Give the empirical formula of each of the following compounds if a sample contains the following quantities of each element. (Type your answer using the format CO2 for CO2.)
(a) 0.0195 mol C, 0.039 mol H, and 0.013 mol O
(b) 11.66 g iron and 5.010 g oxygen
(c) 25.9% nitrogen and 74.1% oxygen by mass
Which of the following sets of information allows you to obtain the molecular formula of a covalent compound? In each case that allows it, explain how you would proceed (draw a road map and write a Plan for a solution).(a) Number of moles of each type of atom in a given sample of the compound(b) Mass % of each element and the total number of atoms in a molecule of the compound(c) Mass % of each element and the number of atoms of one element in a molecule of the compound(d) Empirical formula and mass % of each element(e) Structural formula
Chapter 3 Solutions
Principles of General Chemistry
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