icaO CHEM-3A-81091-2...eadWicalPart APCl5 (g) PC13 (1) + Cl2(g)Use A for [PC15], B for [PC13], C for [Cl2].ΜΕ ΑΣΦKeq AC1.8SubmitPrevious Answers Request Answer× Incorrect; Try Again; 3 attempts remainingPart B2KNO3(s)= 2KNO2 (s) + O2(g)Use A for [KNO3], B for [KNO2], C for [02].Keq =ΜΕ ΑΣΦSubmitPart CRequest AnswerPollen tomorrow??

The law of mass action states that each mass is increased to a power equal to the coefficient that…

Answered: ica O CHEM-3A-81091-2... ead W ical…

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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[X] (ppm) 0.00 10.0 15.0 20.0 25.0 30.0 35.0 x-axis Resources UV-Vis absorbance data for molecule X collected at 425 nm using a 3.50 cm cuvet is given in the table. [X] (M) 0.00 1.00 × 10 4 1.50 × 10-4 2.00 × 10-4 2.50 × 10-4 3.00 x 10-4 3.50 x 10-4 O %T %T T A 100.0 1.000 0.000 49.4 0.494 0.306 34.9 0.349 0.457 25.3 0.253 0.597 17.3 0.173 0.761 15.4 0.154 0.813 13.9 0.139 0.857 Prepare a plot using the linear range of the data to determine the molar absorptivity. What should be plotted on each axis to determine the molar absorptivity of molecule X at this wavelength? x Give Up? y-axis Hint OT 8:1
50 uL of an aqueous sample of double-stranded DNA is dissolved in 950uL of water. This diluted solution has a maximal absorbance of 0.326 at 260 nm. What isthe concentration of the original (more concentrated) DNA sample, expressed in ug/ul? I would like to know the process of this question. And I was wandering as well if the total diluted volume would be 950ul + 50ul = 2000ul
Molecular Formula: C10H14 8 LOD TRANSMITTANCE1% D 4000 STRUCTURE: mult. t 2.72 q 6.90 S d t ppm 1.18 7.11 7.53 3000 H 6 4 1 2 1 5 2000 SPECTRUM 5 4 PPM HAVENUMBERI-L 1500 3 1000 500
Question 19 of 27 > Graphs are a common data analysis tool used in all branches of science. The given graph represents how light absorbance at 423 nm varies with concentration of an organic dye. Identify the parts of the graph. Answer Bank y = 0.210x – 0.032 line equation Title Abs423 Dye Conc. (nM) best-fit line 0 i 2 3 4 5 6 7 8 9 10
3
What is the parent mass of Unknown Compound #1 based on the given MS? 100- MS-NW-4927 80 60 60 Relative Intensity 40 40 20 20 A B [M+1] C 0 10 15 20 25 30 35 40 45 50 50 55 60 65 70 75 80 m/z
This question has multiple parts. Work all the parts to get the most points. A solution of a dye was analyzed by spectrophotometry, and the following calibration data were collected. Dye Concentration Absorbance (A) at 475 nm 0.50 x 10 M 0.24 9. 1.5 x 10 M 0.36 2.5 x 10 M 3.5 x 10 M 4.5 x 10 M 0.44 0.59 0.70 a Construct a calibration plot, and determine the slope and intercept. Slope = y-intercept =
iv
Mass Spectrum 1000 - 800.0 600.0 400.0 200.0 0.000- 50.00 100.0 m/z 150.0 200.0 lamalan saldassallaalan C-H;BRO, D00 3000 2000 1000 500 HAVENUNBERIl Abundance
The quenching of tryptophan fluorescence by dissolved O₂ gas was monitored by measuring the emission lifetimes at 348 nm in aqueous solutions. [0₂]/(10-² mol dm-³) T/(10-⁹ s) 0 2.3 5.5 8 10.8 2.6 1.5 0.92 0.71 0.57 A. 0.95 E-2 M B. 4.3 E-2 M C. 1.8 E-2 M D. 3.0 E-2 M E. None of the choices From the data above, predict the value of [0₂] required to decrease the intensity of tryptophan emission to 50% of the unquenched value.
balance chemical equations with interfering coefficients

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