9. (22 pts) A compound undergoes first-order decay and has a half life of 5.6 s. (a) (6pts) Calculate the rate-constant?

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9 22 Pts A Compound Undergoes First Order Decay And Has A Half Life Of 5 6 S A 6pts Calculate The Rate Constant 1 (38 KiB) Viewed 54 times

9. (22 pts) A compound undergoes first-order decay and has a half life of 5.6 s. (a) (6pts) Calculate the rate-constant? (b) (8pts) How much of a 6.75 M sample of this compound will remain after 4.5 s? (c) (8pts) How long will it take for a 10.5 M sample of this compound to decay to 1.25 M? Multiple Choice (24 pts) 1) Calculate the mole fraction of nitric acid (HNO₂) of a 17.5% (by mass) aqueous solution of nitric acid. A) 0.0607 B) 0.0572 C) 0.278 D) 3.37 E) 1.75