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17 Nov 2019
To understand how to use integrated rate laws to solve for concentration. A car starts at mile marker 145 on a highway and drives at 55 mi/hr in the direction of decreasing marker numbers. What mile marker will the car reach after 2 hours? This problem can easily be solved by calculating how far the car travels and subtracting that distance from the starting marker of 145. 55 mi/hr times 2 hr = 110 miles traveled milemarker 145 - 110 miles = milemarker 35 If we were to write a formula for this calculation, we might express it as follows: milemarker = milemarkero - (speed times time) where milemarker is the current milemarker and milemarkero is the initial milemarker. Similarly, the integrated rate law for a zero-order reaction is expressed as follows: [A] = [A]_0 - rate times time The rate constant for a certain reaction is k = 3.60 times 10^-3 s^-1. If the initial reactant concentration was 0.750 M, what will the concentration be after 11.0 minutes? Express your answer with the appropriate units. A zero-order reaction has a constant rate of 1.30 times 10^-4 M/s. If after 65.0 seconds the concentration has dropped to 5.50 times 10^-2 M, what was the initial concentration? Express your answer with the appropriate units.
To understand how to use integrated rate laws to solve for concentration. A car starts at mile marker 145 on a highway and drives at 55 mi/hr in the direction of decreasing marker numbers. What mile marker will the car reach after 2 hours? This problem can easily be solved by calculating how far the car travels and subtracting that distance from the starting marker of 145. 55 mi/hr times 2 hr = 110 miles traveled milemarker 145 - 110 miles = milemarker 35 If we were to write a formula for this calculation, we might express it as follows: milemarker = milemarkero - (speed times time) where milemarker is the current milemarker and milemarkero is the initial milemarker. Similarly, the integrated rate law for a zero-order reaction is expressed as follows: [A] = [A]_0 - rate times time The rate constant for a certain reaction is k = 3.60 times 10^-3 s^-1. If the initial reactant concentration was 0.750 M, what will the concentration be after 11.0 minutes? Express your answer with the appropriate units. A zero-order reaction has a constant rate of 1.30 times 10^-4 M/s. If after 65.0 seconds the concentration has dropped to 5.50 times 10^-2 M, what was the initial concentration? Express your answer with the appropriate units.
Jamar FerryLv2
17 Sep 2019