
Three students were asked to find the identity of themetal in a particular sulfate salt. They dissolved a0.1472-g sample of the salt in water and treated it withexcess barium chloride, resulting in the precipitation ofbarium sulfate. After the precipitate had been filteredand dried, it weighed 0.2327 g.
Each student analyzed the data independently andcame to different conclusions. Pat decided that the metalwas titanium. Chris thought it was sodium. Randy reportedthat it was gallium. What formula did each studentassign to the sulfate salt?
Look for information on the sulfates of gallium, sodium,and titanium in this text and reference books suchas the CRC Handbook of Chemistry and Physics. Whatfurther tests would you suggest to determine which studentis most likely correct?

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Chapter 4 Solutions
Chemical Principles
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- A. B. b. Now consider the two bicyclic molecules A. and B. Note that A. is a dianion and B. is a neutral molecule. One of these molecules is a highly reactive compound first characterized in frozen noble gas matrices, that self-reacts rapidly at temperatures above liquid nitrogen temperature. The other compound was isolated at room temperature in the early 1960s, and is a stable ligand used in organometallic chemistry. Which molecule is the more stable molecule, and why?arrow_forwardWhere are the chiral centers in this molecule? Also is this compound meso yes or no?arrow_forwardPLEASE HELP! URGENT!arrow_forward
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