Problem Set 8 - Problem Set 8 Chemistry 1130 Ch 3 pp...

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Problem Set 8 Chemistry 1130 Ch. 3, pp. 124-137 Chem 1130 - 1 - P-Set08-F11.docx Chemical Formulas, Naming, and Chemical Equations 3. Describe the principle difference in the nature of the chemical bonding in compounds referred to as “ionic” versus those termed “molecular.” 4. Identify each of the following as either molecular or ionic substances, and determine the formula weight. In the case of the ionic substances, give the anion and cation present. a) CaBr 2 b) N 2 O 4 c) SBr 4 d) Na 2 CO 3 e) FeCl 3 f) RbClO g) Cr 3 (PO 4 ) 2 5. Write the formula for the compound formed by each of the following pairs of ions. a) Ti 4+ and O 2- b) Fe 3+ and SO 4 2- c) Y 3+ and S 2- d) Ca 2+ and PO 4 3- 6. Pentane can be represented in a number of different ways: C 5 H 12 CH 3 CH 2 CH 2 CH 2 CH 3 a) What is the formula weight of pentane? b) What is the weight of one molecule of pentane? c) How many different types of carbons are in pentane? d) What experimental methods could be used to determine the number of different types of carbons? e) Is pentane a polymer?
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