Exam1A - CHEM 1211K Exam One Fall 2010 1 Which compound is...

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CHEM 1211K Exam One Fall 2010 Form A 1 1. Which compound is NOT correctly named? (A) (NH 4 ) 2 SO 4 ammonium sulfate (B) O 2 F 2 dioxygen difluoride (C) RbCl rubidium chloride (D) Cu 3 (PO 4 ) 2 copper phosphate (E) None of the above. 2. A compound was found to contain 43.64% P and 56.36% O by mass. The compound has a molar mass of 283.88 g/mol. What is the compound's molecular formula? (A) P 2 O 5 (B) P 4 O 5 (C) P 4 O 10 (D) PO 2 (E) P 2 O 3. The active ingredient in baking soda is NaHCO 3 . How many grams of NaHCO 3 are needed to provide 2.15 x 10 23 atoms of oxygen? (A) 6.19 g (B) 10.0 g (C) 18.6 g (D) 30.0 g (E) 90.0 g 4. What are the spectator ions in the reaction of aqueous solutions of PbCl 2 and Li 2 SO 4 ? (A) Li + and Cl - (B) Pb 2+ and SO 4 2- (C) Li + and Pb 2+ (D) SO 4 2- and Cl - (E) Li + and SO 4 2-
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CHEM 1211K Exam One Fall 2010 Form A 2 5. What is the proper formula for the ionic compound formed between Fe 3+ and the hydroxide ion? (A) FeO 3 (B) Fe 3 O (C) FeO (D) FeOH 3 (E) Fe(OH) 3 6. Which ionic compound below is insoluble in aqueous solution? (A) LiOH
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Exam1A - CHEM 1211K Exam One Fall 2010 1 Which compound is...

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