Spring22 Simple Harmonic Motion Lab Online

10 11 12 13 14 15 16 17 18 19 20 Calculate the solubility of BaCro, in water at 25 °C. You'll find K data in the ALEKS Data tab. sp Round your answer to 2 significant digits. Continue MacBook Air

= Evaluate (ax10³) (bx102) (cx105) (dx10-3) Where a = 5.75 b = 4.54 c = 7.57 d = 7.71

7:27 Done Photo Dimensional Analysis Worksheet NAME: madsoo mcucker 1. 261 J» kJ 11. 22.4 kg/L to dag/mL 2. 3.0 x 1022 molecules → mol 12. 0.74 miles/min to dm/sec 3. 9,474 mm cm 13. 1.42 g/cm? to mg/mm? 4. 0.73 mol → L 14. 10095 ft/s to miles/s 5. 5.93 cm m2 15. 9.81 mg/L to lbs/cm 6. 498.82 L - molecules 16. 8.41 kJ/mol to cal/L 7. 1.00 ft hm 17. 3.8 Mg → Ibs 8. 1.0 year - minutes 18. 7.68 g/mol → ng/molecules 9. 175 lbs cg 19. 8.24 atm/cm to torr/ft 10. 4.65 km - in 20. 25 m/s to miles hr

Hi there, I'm having trouble with this problem. What would be the correct answer and the reasoning?

Can you show how to out this calculation in the calculator? Everytime I do it, I get a different answer.

In the technique of high performance liquid chromatography (HPLC) the peak area response for a particular analyte is directly proportional to concentration Analgesic tablets typically consist of aspirin and caffeine as the active ingredients, the remainder made up of inert binding material. The concentrations of aspirin and caffeine may be routinely monitored using HPLC, whereby the peak areas obtained from a solution of the tablet are compared with those obtained from standard solutions of the analytes. In an analysis to determine the concentration of caffeine in such a tablet, the following data were recorded: Solutions Analysed: Tablet Sample: Mass of tablet (dissolved in 250 cm methano): 0.523 g Caffeine Standard: Mass of caffeine (diessolved in 500 cm methanol) 0.105 g HPLC results: Solution Peak Area (catfeine) 1. Tablet Sample 325 2. Caffeine Std. 865 The concentration of caffeine in the tablet (expressed as a mass (w/wl percentage) was Oa 1.89 Ob 13.4 O 3.77 Od. 267 Oe 7.54 You…

on the last part of the problem where it is x=( 10-10 x 0.25)1/2=5x10-6 M When I plug that into my calculator I get 1.25 an not 5x10-6 what am I doing wrong

Student Discipline Problems The data for a random sample of 32 months for the number of discipline problems that occurred each month at a large high school are shown. Find the 99% confidence interval for the mean when σ 3. Round your answers to one decimal place. = 13 19 10 11 14 25 16 27 22 29 23 29 28 17 17 22 28 26 29 20 22 18 14 215 16 27 17 14 17 110 11 20 19 22 Send data to Excel We are 99% confident that the mean is between 15.1 and 17.8 discipline problems per month.

Question: Using a method for the determination of % CaO in limestone the following results were obtained for a NIST Certified Reference Sample (CRM): % Cao 50.38, 50.20, 50.31, 50.22 50.41 Five samples were obtained from a railcar of limestone. The analysis of the samples gave the following results: % CaO 55.01, 59.61, 58.82, 64.39, 62.49 a) Determine the variance due to sampling. b) If the samples taken from the railcar had a mass of 0.500 g, what mass

B NA BH2 bh3 S = 6 6H Calculator: NA indicates neutral axis Section Modulus I Beam Universal Calculator For the next four questions (including this one) ignore k and k1 in your calculations. Using the same table, enter the value for B in inches. (three sig figs)

I only need the slopes column if possible anything else is extra.

Icalate Hi BeHot)+6el2( +2Bels() +oHel(②) using Hess Law Bel310+3H2O→H2B/23(g) +3=-122.5K) B2H6(+6H2O(P)→2HB+6H2(火) →トニ-4734人) Male B₂ HO H2(+244145) Siven +3HP Im Belz

Chrome File Edit View History Bookmarks People Tab Window Help HOc Dashbc X E Buy Es: X G find so X © Periodi x A ALEKS X M Mathwa X Hcc Chapte x H New m x ト→ C A www-awn.aleks.com/alekscgi/x/Isl.exe/1o_u-IgNslkr7j8P3jH-IQİHQRDYV_6Ux63SypJXz0Coxvwqgg4JkWI7Cge0xmXkyh... O GASES Using Charles's Law Jacqueline An arctic weather balloon is filled with 48.4 L of helium gas inside a prep shed. The temperature inside the shed is 9. °C. The balloon is then taken outside, where the temperature is -42. °C. Calculate the new volume of the balloon. You may assume the pressure on the balloon stays constant at exactly 1 atm. Round your answer to 3 significant digits.

Perform the calculations and determine the absolute and percent relative uncertainty. Express each answer with the correct number of significant figures. To avoid rounding errors, do not round your answers until the very end of your calculations.

What is the value of the expression below when c = 5 and d = 4? 6c² - 5d + 8 ! A 48 9 a B 79 N c) 138 D) 888 SHOW HINT 2 W S X 3 e d C $ 4 C r f % 5 V t g Oll Y b & √ 80 7 h acer u n 8 j O i ( 9 3 k O

You have the following data points which belong to a function of the form y = aei, where b can be positive or negative. 11.5 25.8 30.3 2.00 4.00 5.00 You wish to determine the value of the constant, b, and to do so you will construct a linear plot. What will you plot against what? y-axis label: T-axis label: From the values of z and y in the table above, calculate the values of the three corresponding data points. Click on the graph below, and use the "Freeform Curves" tool to plot the data. Line segments will automatically connect the points. Enter Solution What is the numerical value of the constant, b? Previous Next

The density of water varies with temperature.       T / oC            Density / g mL–1       19.00             0.998405       20.00             0.998203 What is the density of water at 19.75ºC found by linear interpolation?   Question 4 options:   0.998304 g mL–1   0.998254 g mL–1   0.998355 g mL–1

What is the slope of the calibration curve (first four options), the Y-intercept of the calibration curve (second four options), and the R² value of the calibration curve (final four options) to four significant figures on each?

Part B Perform the same calculation for N2 under identical conditions. (Hint: Do you need to reevaluate the full expression for qT ?) Express your answer to three significant figures. ? qT (N2) = Submit Request Answer

Need help with dimesional analysis

Given the following data, calculate the 95% confidence interval. 0.452    0.453    0.448    0.456    0.458 Average = 0.4534 St. Dev. = 0.003847 1) 0.453 ± 0.004 2) 0.453 ± 0.005 3) 0.4534 ± 0.0048 4) 0.4534 ± 0.0037 5) 0.4534 ± 0.0038

8:45 Convert 7.6 cm³ to m³ STARTING AMOUNT ADD FACTOR x( ) (1000) ³ 0.01 (0.1) ³ (0.01) ³ 0.076 (1) ³ 0.1 1 100 1000 Question 29 of 40 (100) ³ 7.6 x 10-4 7.6 7.6 x 10-6 X ANSWER m³ cm³ m cm Tap here or pull up for additional resources ..lLTE Submit RESET 5

Please answer as soon as possibly and I will leave a like.