1. [-15 Points] DETAILS DEVORESTAT9 9.E.003.MI. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Pilates is a popular set of exercises for the treatment of individuals with lower back pain. The method has six basic principles: centering, concentration, control, precision, flow, and breathing. An article reported on an experiment involving 88 subjects with nonspecific low back pain. The participants were randomly divided into two groups of equal size. The first group received just educational materials, whereas the second group participated in...
O STOICHIOMETRY Dilution A chemist makes 80.0 ml. of potassium dichromate (K,Cr,0,) working solution by adding distilled water to 60.0 ml. of a 0.0763 M stock solution potassium dichromate in water. Calculate the concentration of the chemist's working solution. Be sure your answer has the correct number of significant digits 다,p
please help me ! H,0), a triprotic acid, into a 250 ml volumetric flask and dilutes to the mark with distilled water, A chemistry student weighs out 0.279 g of citric acid ( H C He plans to titrate the acid with 0.0800 M NaOH solution. Calculate the volume of NaOH solution the student will need to add to reach the final equivalence point. Be sure your answer has the correct number of significant digits 0 mL
omework: 3-2 MyStatLab: Module Three Problem Set ore: 0 of 5 pts 12 ot 14 (9 complete) HW Score: 53 43%, 34.73 of 65 2.30-T Question Help survey was conducted that asked 005 people how many books they hadr ad in he past year. esu s nicated atx 14 Sbooks and s n books or struct a %00 fidence nter anor e mean nu ad Interpret the interval o struct a 95% confidence interval or the mean number o books...
5, + 0/16.66 points l Previous Answers ASWSBE 1312. E.025 My Notes Ask Your Teacher You may need to use the appropriate technology to answer this question. Use α = 0.01 and conduct a goodness of fit test using 5 classes to see whether the following sample appears to have been selected from a normal probability distribution. (Note: x 71.4 and s 17.) 55 86 94 5855 95 55 52 6995 90 65 87 5056 55 57 98 5879 92...
8. 0/6 POINTS | PREVIOUS ANSWERS MY NOTES ASK YOUR TEACHER Nitrite ion, NO2, is a preservative for bacon and other foods, but it is potentially carcinogenic. A spectrophotometric determination of NO2 makes use of the following reactions. H0,5-O-NH, + NO3 + 2 H+ — | HO,s-O-NEN + 2 H2O HOS-O-NEN+ O-NH, -Aminonaphthalene HO, S O -N=N-O-NH, + H+ Colored product, ._ 520 nm Here is an abbreviated procedure for the determination. To 50.0 mL of unknown solution containing nitrite...
a e Octave a a Caleculator to qn i. Calculate the number N equal to the sum of all digits of your SID ii. For the N × N matrix A = (aij) defined as aij-l if i = j, or i + 1 = j, and aij 0 for all other values of (i,j) Compute (A-)x for x ,,1 ER . Compute (A-1)Tx for x = [1, 2, 3, . . . , NIT E RN. . Compute x-A(A-19%...
Please do these out ORRECT be sure to SHOW ALL WORK and GIVE ANSWERS WITH THE a correct answer unless all of art D: (20 points) Answer ONE of the following questions, either A or B. For the probl OF SIGNIFICANT FIGURES AND UNITS. Full credit will not be given f your work is shown. POINTS WILL BE SUBTRACTED if an answer does hot have the correct number of significant figures and units A(20 pt) A 20,00-ml sample CHaN $.2...
question 8 and 15 E) 10.95 kJ/mol 8) (4 pts) The brown gas NO, and the colorless gas N20, exist in equilibrium, N,0 2NO In an experiment, 0.412 mole of N,O, was introduced into a 5.00 L vessel and was allowed to decompose until equilibrium was reached. The concentration of N20, at equilibrium was 0.07M. Calculate the approximate Ke for the reaction. A) 10.0 B) 2.12 C) 0.88 D) 0.09 E) 0.009 0.410 - X OS CHEM 1002 Exam 3,...
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