Understanding Action Potentials: Simulation, Refractory Periods

Name: Lyna Ammi Date: 1/26/2022 Section: 02L Data Report Sheet: The Reaction of Methyl Violet with NaOH: A Kinetic Study 3. What is the value of k"?

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Correct answers given in second picture!!! Please just show me how to get them

Application of Material 100 Okay, you can get out your books, notes, or whatever else you would like (okay, except other people). Show your work, as I will give credit for anything you do correctly (if you are need it is easier for me to determine if you do something correctly). If you need to make assumptions, specify what they are. 1. A reaction 2A+B P was determined to be 2/3 order with respect to B, and Oth order with respect to A, with a rate constant of kr 3.892 x 10-5 M1/3 s-1. (35 points) = - (a) For this reaction, derive the integrated rate law with respect to A, B, and P. (b) For this reaction, determine the amounts A, B, and P present after 500, 1000, 1500, 2000, 2500, and 3000 seconds (assuming no intermediate exists). [A] = [B]o = 1.00 x 10-2M. (You might want to use excel or similar software to do this. (c) Based on your data, use excel or similar software to prepare a plot of concentration vs time for A,B, and P. (d) Determine the rate constant for the reaction. (e)…

QUESTION 2 Which of the following is mostly correct for SN2 (disregard that the arrows are not drawn the best for this mechanism) I. II. +Br + Br III. IV Br Br CN O + Br + Br OA.I OB.I OC.II O D.IV QUESTION 3

Answer the following if True or False. (11-20)   11. UHF radiowaves are ionizing form of radiation. *   True   False   12. Gray is the unit of the absorbed dose of radiation. *   True False   13. Spent fuel, uranium dioxide, from nuclear power plant can be disposed as ordinary solid waste. *   True   False   14. Sievert is a unit of the amount of energy that has been absorbed by the living tissue. *   True   False   15. The earth is constantly bombarded by background radiation like cosmic rays. *       True   False   16. Half-life of radioactive nuclides decreases by half every time they emit radiation. *   True False   17. Alpha particles are the most ionizing radiations. *       True   False   18. Irradiated…

Explain how the rate of reaction rate in pressure cookers was increased by including these subtopics:1. Chemical reaction(s) involved with chemical equation(s)2. Reactants, products, and possible catalysts involved in the chemical reaction3. Explain with collision theory and energy potential diagrams: how the rate of reaction is affected by temperature, surface area, nature of reactants, concentration, etc. by using collision theory?4. Discuss whether the reaction is endothermic or exothermi

Use the References to access important values if needed for this question. Write the Ksp expression for the sparingly soluble compound calcium phosphate, Ca3 (PO4)2. (If either the numerator or denominator is 1, please enter 1.) Ksp Submit Answer Retry Entire Group 9 more group attempts remaining Previous Next

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Dangerous Paint Stripper Jessica has a summer job working for the city parks program. She has been using a cleaner called “Graffiti Gone” to remove graffiti from the bathrooms. She has to take a lot of breaks, because the chemical makes her throat burn. It also makes her feel dizzy sometimes, especially when the bathrooms don’t have very many windows. On the label, she sees that the cleaner has methylene chloride in it. She feels like she’s managing to get the work done, but she is worried about feeling dizzy. She wants to find out more about this chemical, what harm it can cause, and whether there are safer ways to do this work. Questions for following story. 1. What went right in this situation? 2. What went wrong in this situation? 3. What steps should be taken in this workplace to make sure employees are better protected and prepared the next time?

Analytical Chemistry Laboratory Experiment: Determination of Iron Content in Water Samples by Visible Spectroscopy

An aqueous drug solution had an observed first order rate (kobs) constant of 0.058 h^-1at pH of 2.0 and 0.0025 h^-1 at a pH of 6.5. The solvent catalysis rate constant(ko) will be: A. 3.29x10^-3 h^-1 B.4.87x10^-3 h^-1 C.7.35x10^-3 h^-1 D.2.50x10^-3 h^-1 E. 1.45x10^-3 h^-1

A gallon of methyl ethyl ketone (MEK) is spilled in a room which is 20'x15'x10'. Given static conditions, what is the concentration in the room? A. 12,237 ppm B. 12, 327 ppm C. 13,227 ppm

calculate the [FESCN2+] using volumes of stock solutions. Presume that all of the SCN- ions react. Next, record the light absorbance values of each standard solution. Volume Volume Volume [FESCN2+] Absorbance Standard Fe(NO3)3 SCN- H2O sample (mL) (mL) (mL) 1 2.50 2.00 20.50 0.1811 2 2.50 1.50 21.00 0.3219 2.50 1.00 21.50 0.4981 4 2.50 0.50 22.00 0.6328 Stock [Fe(NO3)3] = 0.200 M, Stock [SCN-] = 0.0020 M. %3D

M Apple Google Disney ESPN Yahoo! Biomedical Careers Program Apple iCloud Yahoo Images Bing Google Wikipedia COWLv2 |... b D2L ☆ & G For the reaction r r Submit Answer prod03-cnow-owl.cengagenow.com Fe(s) + 2HCI(aq)→→→FeCl₂(s) + H₂(g) AH° = -7.4 kJ and AS° = 107.9 J/K D2L D2L D2L Facebook Twitter LinkedIn Use the References to access important values if needed for this question. The Weather Channel Yelp TripAdvisor b D2L M G C The maximum amount of work that could be done when 2.08 moles of Fe(s) react at 286 K, 1 atm is Assume that AH° and ASº are independent of temperature. Retry Entire Group 4 more group attempts remaining kj. +88 M

Sessions McGraw-Hill Aleks Exam #1 (Fall 2022) CHM1025 Exam #3 (Fall 2022) Exam #4 (Fall 2022) Final Exam (Fall 2022) 3 27 28 29 Moving to another question will save this response. Question 29 10 11 In the following reaction, identify the reducing agent Folrzlwa) - 0129) → FoGzid) * Bry) Note: Indicate "none" if you deem there to be no reducing agent) Moving to another question will save this response. 12 MacBook Air 15 16

Corrected True/False: Indicate whether each statement is true or false by circling the word true or the word false. If false, correct the statement to make it true in the space provided. 10. A physical change usually involves a greater enthalpy change than does a chemical change. True / False 11. In endothermic reactions the products have more kinetic energy than the reactants. True / False 12. The process of nuclear decay is a third order reaction. True / False 13. The rate-determining step is the slowest step in a reaction mechanism. True / False

Document1 - Word Search (Alt+Q) References Mailings Review View Help Write the corresponding letters to the following descriptions. Each proposal can be associated with 0 or 1 match and each letter is not necessarily associated with a proposal. a. [Ar] 4s? b. 1s 2s2p63s23p3 c. 1s2s2p2 d. [Ne] 3s23ps e. [Ar] 4s23d10 f. 1s22s! g. None of those answers 1. I am a halogen 2. I am a transition metal 3. I am alkaline 4. I have exactly 2 single electrons 5. I am the smallest of the atoms presented here 6. I have exactly 3 valence electrons 7.I am the most paramagnetic of the atoms presented here 8. I am the copper 9.I am isoelectronic with Ti2+ IF cessibility: Good to go IA 16 SIS

MITIMI DATAT 11 12 13 14 15 Pb(OH)4(aq) + H3PO4(aq) + C₂H6(s) + C3H8(s) + C5H10(s) + Cu₂O(aq)- ->> HCl(aq) O2(g) O2(g) O2(g) - PbO₂2(8) + CuOH(aq) PC15(s) + CO2(g) CO2(g) + CO2(g) + H₂O H₂O(g) H₂O(g) H₂O(g) SLIVEWOR Identify the type of chemical reaction happening in equations 1-15.

Question : Some deposits were observed in water preserved in aluminum containers after two to three days. What could the deposit be ? What is the reason for the formation of these deposits ?   Kindly Do not Spam or Copy from Other Websites Give Proper Answer with Correct Explanation Asking this Question with a hope to get correct answer Bored of Seeing Internet Answers All the Best for Solving this Question

how do you this? how to enter it in the calculator?

D. Absence of Tyndall effect phenomenon. 10. Identify the CORRECT statement regarding the chemisorption. A. Multilayer adsorption. B. Heat of adsorption is < 40 kJ/mol. C. Adsorption can occur at high temperature. D. Molecules of gas are held by weak Van der Waals forces. 3 I 5 Q + Page T.50 hp

Module 14 Discussion: Logarithmic Application A Radiative Forcing Radiative forcing, R, measures the influence of carbon dioxide in altering the additional solar ration trapped in Earth's atmosphere. The International Panel on Climate Change (IPCC) in 1990 estimated k to be 6.3 in the radiative forcing equation R = k In(), where Co is the preindustrial amount of carbon dioxide and C is the current level. (Data from Clime, W., The Economics of Global Warming, Institute for International Economics, Washington, D.C.) (a) Use the equation R = 6.3 In() to determine the radiative forcing R, in watts per square meter (W) to the nearest tenth, expected by the IPCC if the carbon dioxide level in the atmosphere doubles from its preindustrial level. (b) Determine the global temperature increase T, in degrees Fahrenheit to the nearest tenth, that the IPCC predicted would occur if atmospheric carbon dioxide levels were to double, given T(R) = 1.03R. Search entries or author Unread 96 4444 ↑ Oll 7…

6. detail solution please

I need help with only questions 7-9 (Not honor class) (Not grading)

Beaker Volume of KSCN No solution 1 0.50 mL 9.50 mL Part I: Data for Calibration Graph Accurate Concentration of potassium thiocyanate, KSCN stock solution: 0.001 M 0.2 M Fe(NO3)3- Iron(III)nitrate solution: 0.5M Volume of HNO3 solution 0.2 M Volume of 0.2 M Fe(NO3)3 solution 10.00 mL Absorbance 0.037 2 1.00 mL 9.00 mL 10.00 mL 3 2.00 mL 8.00 mL 10.00 mL 4 3.00 mL 7.00 mL 10.00 mL 0.122 0.313 0.547 5 4.00 mL 6.00 mL 10.00 mL 6 5.00 mL 5.00 mL 10.00 mL 0.791 0.868

A solution of a dye with an absorptivity coefficient (ε) of 3.75 x 102 M-1cm-1 had an absorbance of 0.039 measured in a cell whose width is 1.00 cm. What is the concentration of the dye in the solution? a. 1.46 x 10-3 M b. 1.04 x 100 M c. 1.04 x 10-4 M d. 1.46 x 101 M

Name (please print): Fall 2022 Basic Laboratory Operations Post Lab Questions 1.) Suppose you're attempting to measure the density of a liquid that is highly volatile (it evaporates quickly). If you first measure the mass and then several minutes later you measure the volume of the liquid will the measured density be higher than the true value, lower than the true value, or the true density of the liquid. [It helps to understand this problem with the density equation.] 2.) Suppose you're attempting to measure the density of a liquid that is highly volatile (it evaporates quickly). If you first measure the volume and then several minutes later you measure the mass of the liquid will the measured density be higher than the true value, lower than the true value, or the true density of the liquid. [It helps to understand this problem with the density equation.] 3.) You're attempting to calculate the density of an alloy. The alloy is in the shape of a cylinder. If the mass of the alloy is…

Reaction intermediates differ from activated complexes in that___. A. they are stable molecules with normal bonds and are frequently isolated. B. they are molecules with normal bonds rather than partial bonds and can occasionally be isolated. C. they are intermediate structures which have characteristics of both reactants and products. D. they are unstable and can never be isolated. E. all reactions involve reaction intermediates, but not all have activated complexes.

chemhelp7 The researcher determined the Pb content of water sample from a river suspected to be contaminated with Pb from a nearby factory by complexing with cyanidine and the absorbance measured was 0.405. What is the lead content of the water sample? a. 4.23 ppm b. 4.28 ppm c. 207 ppm d. 333 ppm