4-44 Answer true or false.
(a) The mole is a counting unit, just as a dozen is acounting unit.
(b)
(c) Avogadro’s number, to three significant figures, is formula units per mole.
(d) 1 mol of H2O contains formula units.
(e) 1 mol of H2O has the same number of molecules as 1 mol of H2O2.
(f) The molar mass of a compound is its formula weight expressed in amu.
(g) The molar mass of H2O is 18 g/mol.
(h) 1 mol of H2O has the same molar mass as 1 mol of H2O2.
(i) 1 mol of ibuprofen, C13H18O2, contains 33 mol of atoms.
(j) To convert moles to grams, multiply by Avogadro’s number.
(k) To convert grams to moles, divide by molar mass.
(l) 1 mol of H2O contains 1 mol of hydrogen atoms and one mol of oxygen atoms.
(m) 1 mol of H2O contains 2 g of hydrogen atoms and 1 g of oxygen atoms.
(n) 1 mole of H2O contains 18.06 X 10 atoms.
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Chapter 4 Solutions
Bundle: Introduction to General, Organic and Biochemistry, 11th + OWLv2, 4 terms (24 months) Printed Access Card
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