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19 Nov 2019
Given the following titration information, what was the molar concentration of t-butyl chloride at 85 minutes? Round to 1 significant digit and put no units. Hint Calculating the other missing values of the table may be necessary to compute the answer run minutes mL 0.04 M NaOH [HCI] [tbutyl chloridel 3 8519.2 7 infinity 28.1 Answer: Given the following timed data, convert mL 0.04 M NaOH to concentration of HCI [HC], in 10 mL aliquots of the reaction of t-butyl chloride in isopropanol/water Then convert [HCI], to concentration of t-butyl chloride, [RX), Using a program such as Microsoft Excel, plot (Scatter Chart) time versus natural log of concentration of t-butyl chloride at time zero over concentration of t-butyl chloride at each time, In(RX/IRX3). Determine the slope of your plot as instructed in this vidao. The slope is the rate constant of first order kinetics as given by equation 20.2 of your text. This is equivalent to Figure 20.1 of your text but we don't have to use the factor 2.303, In(10), because we are using natural versus base 10 logs. Before the advent of calculators, people actually used tables to look up log10 values! Hint: [R o-, so that [RX, = [RX1ã-HCI, which is the equation at the bottom of page 322 of your text? run time (min) mL 0.04 M NaOH [HCll IRX, Inf(IRxl /IRX]) 110 2 18 223 9 12 19 20 5 74 105 7 infinity 27 Give only 2 significant digits without units or any other symbol. Do not use scientific notation Answer
Given the following titration information, what was the molar concentration of t-butyl chloride at 85 minutes? Round to 1 significant digit and put no units. Hint Calculating the other missing values of the table may be necessary to compute the answer run minutes mL 0.04 M NaOH [HCI] [tbutyl chloridel 3 8519.2 7 infinity 28.1 Answer: Given the following timed data, convert mL 0.04 M NaOH to concentration of HCI [HC], in 10 mL aliquots of the reaction of t-butyl chloride in isopropanol/water Then convert [HCI], to concentration of t-butyl chloride, [RX), Using a program such as Microsoft Excel, plot (Scatter Chart) time versus natural log of concentration of t-butyl chloride at time zero over concentration of t-butyl chloride at each time, In(RX/IRX3). Determine the slope of your plot as instructed in this vidao. The slope is the rate constant of first order kinetics as given by equation 20.2 of your text. This is equivalent to Figure 20.1 of your text but we don't have to use the factor 2.303, In(10), because we are using natural versus base 10 logs. Before the advent of calculators, people actually used tables to look up log10 values! Hint: [R o-, so that [RX, = [RX1ã-HCI, which is the equation at the bottom of page 322 of your text? run time (min) mL 0.04 M NaOH [HCll IRX, Inf(IRxl /IRX]) 110 2 18 223 9 12 19 20 5 74 105 7 infinity 27 Give only 2 significant digits without units or any other symbol. Do not use scientific notation Answer
Hubert KochLv2
1 Feb 2019