Chapter%203%20practice%20problems - 8. Calculate the number...

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CHEM 215 Chapter 3 Problem Set 1. For each of the following binary compounds, decide whether the compound is expected to be ionic or non-ionic. a) BaO b) SeF 4 c) ClF 3 d) CuCl 2. Give systematic names to the following binary compounds. a) N 2 F 2 b) NCl 3 c) N 2 O 5 d) As 4 O 6 3. Write the formula of each of the following compounds. a) bromine trifluoride b) dichlorine monoxide c) dinitrogen tetrafluoride d) arsenic pentafluoride 4. For each of the following pairs of ions, write the formula of the corresponding compound. a) Co 2+ and Br b) NH 4 + and SO 4 2 c) Na + and PO 4 3 d) Fe 3+ and NO 3 5. Name the following compounds. a) Na 2 O b) Mn 2 O 3 c) NH 4 HCO 3 d) Cu(NO 3 ) 2 e) Sn 3 (PO 4 ) 2 f ) N H 4 NO 2 g) Mg(OH) 2 h) CrSO 4 6. Write the formulas of: a) sodium sulfite b) copper(I) oxide c) calcium hydrogen carbonate d) tin(II) fluoride e) mercury(I) chloride f) manganese(IV) oxide g) iron(III) nitrate h) nickel(II) phosphate 7. Calculate the molar mass of each of the compounds listed in question 5.
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Unformatted text preview: 8. Calculate the number of moles in 10 grams of each compound in question 6. 9. Calculate the percent by mass of each element in the following compounds: a) NaI b) Ba(NO 3 ) 2 c) C 4 H 8 d) (NH 4 ) 2 Cr 2 O 7 e) CuSO 4 5H 2 O 9. Malonic acid is used in the manufacture of barbiturates (sleeping pills). The composition of the acid is 34.6% C, 3.9% H, and 61.5% O. What is malonic acid's empirical formula? 10. Adipic acid is used in the manufacture of nylon. The composition of the acid is 49.3% C, 6.9% H, and 43.8% O (by mass), and the molecular weight is 146 amu. What is the molecular formula? 11. The composition of an unknown compound is as follows: 17.5% Na, 39.7% Mn, and 42.8% O. The molar mass of the compound is 261.98 g mol-1 . What is the molecular formula of the compound?...
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