Ch 14 HW ± Reaction Rates Resources a previous| 1 of 6 Inext » ± Reaction Rates

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Ch 14 HW ± Reaction Rates Resources a previous| 1 of 6 Inext » ± Reaction Rates Imagine that you took a road trip. Based on the information in the table, what was the average speed of your car? To measure the speed of a car, we use m miles/hour or mi/h or mph). To measure the rate of a reaction we use molar concentration per second Time Mile marker 3:00 pm 8:00 pm iles per hour ( 20 230 Express your answer to three significant figures and include the appropriate units. Use mi as an abbreviation for miles, and h for hours, or mph can be used to indicate miles per hour Hints O alue Units Submit My Answers Give Up Now consider the following reaction and data: Br2 concentration Time 1.21 15 1.96 Part B What is the average rate of formation of Br2? Express your answer to three decimal places and include the appropriate units. Hints alue Units

Explanation / Answer

a.

total miles = 230-20 = 210 miles

total time = 8-3 = 5 hours

V = d/t = 210/5

V = 42 mph

B)

simlarly

Rate = (1.96-1.21)/(15-5) = 0.075 M/s

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