A reaction in which A → products was monitored as a function of time and the results are shown below. Time (s) [A] (mol L-1) 1.000 25 0.914 50 0.829 75 0.744 100 0.659 125 0.573 150 0.488 175 0.403 200 0.318 Part A Determine the order of the reaction. Express your answer as an integer. η ΑΣφ ? n =

How did you get 2.69 x 10-12 ? When I did the caculation I got -5.16 x 10-22

57.9 mL of 0.161 M Fe(NO3)3 and 24.7 mL of 0.557 M Ca(NO3)2 a) [ Fe3+ ] = 9.32 M; [ NO3- ] = 55.5 M; [ Ca2+ ] = 13.8 Mb) [ Fe3+ ] = 0.00932 M; [ NO3- ] = 0.0555 M; [ Ca2+ ] = 0.0138 Mc) [ Fe3+ ] = 0.161 M; [ NO3- ] = 3.59 M; [ Ca2+ ] = 0.557 Md) [ Fe3+ ] = 0.113 M; [ NO3- ] = 0.672 M; [ Ca2+ ] = 0.167 Me) [ Fe3+ ] = 0.0133 M; [ NO3- ] = 0.144 M; [ Ca2+ ] = 0.0460 M

Three labs were contracted to measure the concentration of a 5.50 ppm Ca2* standard solution. They each measured the solution 3 times, and their results are as follows: Measurement 1 Measurement 2 Measurement 3 Laboratory 1 5.47 ppm 5.54 ppm 5.50 ppm Laboratory 2 5.32 ppm 5.44 ppm 5.56 ppm Laboratory 3 5.61 ppm 5.62 ppm 5.60 ppm Select ALL of the TRUE statements about the measurement capabilities of these labs. Lab #3 was the most precise. Lab #1 was the most precise. Lab #1 was the most accurate. Lab #2 was the most precise. O.Lab #2 was the most accurate. Lab #3 was the most accurate.

MULTIPLE CHOICE: Choose the letter of the best answer Please answer all questions correctly 1. The standardization of volumetric solution does not require hydrochloric acid. A. Permanganometry B. Cerimetry C. Iodimetry D. lodometry E.All of the choices 2. In the standardization of its volumetric solution, the primary standard is dried to constant weight, which means drying shall be continued until two consecutive weighings do not differ by more than 0.50 mg. A. Permanganometry B. Cerimetry C. Iodimetry D. lodometry E.All of the choices 3. In the standardization of its volumetric solution, potassium iodide was added to A. Permanganometry B. Cerimetry C. Iodimetry D. lodometry E.All of the choices 4. Starch is the indicator of choice for these procedures because it forms intense blue coloration with the solution. A. Permanganometry B. Cerimetry C. Iodimetry D. lodometry E. C and D 5. In the standardization of its volumetric solution, the reaction needs to be…

A student prepares a 1.1 mM aqueous solution of 4-chlorobutanoic acid (C3H, CICO,H). Calculate the fraction of 4-chlorobutanoic acid that is in the dissociated form in his solution. Express your answer as a percentage. You will probably find some useful data in the ALEKS Data resource. Round your answer to 2 significant digits. % X S

Using grade 12 chem knowledge