Lab 4 ECH 1Y Coffee Design-Final draft

The concentration of the car exhaust fume nitrous oxide, NO2, in the air near a busy road is a function of distance from the road. The concentration decays exponentially at a continuous rate of 2.54% per meter.¹ At what distance from the road is the concentration of NO₂ half what it is on the road? Round your answer to the nearest integer. At i meters from the road the concentration of NO2 in the air is half the concentration on the road. At what distance from the road is the concentration of NO₂ 10% of what it is on the road? At i meters from the road the concentration of NO₂ in the air is 10% of the concentration on the road.

Using the reaction and data in the table below answer the following series of questions. CH3OH(aq) + HCl(aq) ----> CH3Cl(aq) + H2O(I) Reaction CH3OH conc. HCl conc. Initial Rate (M/s) 1 0.100 M 0.100 M 1.1 x 10-2  2 0.200 M 0.100 M 2.3 x 10-2 3 0.100 M 0.200 M 1.1 x 10-2 *conc = concentration a.  The reaction is                                order in regards to CH3OH. b.  The reaction is                              order in regards to HCl.

What is the concentration after 3 minutes has passed?  a.) 0.0702 b.) 0.0693 c.) 6.421E-4 d.) 0.0664

At 40^0c, H202 (aq) will decompose according to the foll. reaction: 2 H202 (aq) ----2H20(l) +02 (g) The foll. data were collected for the concentration of h202 at various times. Time.                    [H202] (mol/L) 0.                           1.600 3.10*10^4              0.592 6.20*10^4.            0.219 (a) Calculate the average rate of decomposition in H202 between0 and 3.10 * 10^4 s. use this rate to calculate the average rate of production 02 (g) over the same time period. (b) What are these rates for the time period 3.10*10^4 s. to 6.20 *10^4 s.? Rate of H202 decomposition Rate of O2 Production

Consider the balanced chemical equation. Submit Request Answer H2O2 (aq) + 31 (aq) + 2H+(aq) → I3 (aq) + 2H2O(1) In the first 12.0 s of the reaction, the concentration of I drops from 1.000 M to 0.773 M . Part B You may want to reference (Pages 587 - 592) Section 14.3 while completing this problem. Predict the rate of change in the concentration of I3 (AI3]/At). Express the rate to three significant figures and include the appropriate units. A[l; ]/At = Value Units

A student is studying the reaction: 2 CrO4 + 2 H3O Cr207 + 3 H2O If CrO4 is yellow and Cr207 is orange, what colour would the reaction mixture turn if concentrated NaOH was added to the reaction? Type your answer and submit X₂ X² Ω· Write your response here.... Unanswered 6 Explain your answer from question 5 Submit

10. What are the major differences between a reaction occurring in flask in the laboratory compared to a reaction occurring in a biological system?

A rate is equal to 0.0200 M/s. If [A] = 0.100 M and rate = k[A]0[B]2, what is the new rate if the concentration of [A] is increased to 0.200 M?   It says the answer was 0.0200 but im not sure, could you check and give me a step by step solution?

I need an answer for this question with solutions. Thank you. #4

Be sure to answer all parts. For the following general reaction, rate -AJAJ and k-1.3 x 102 M.s. A+B 2C Use this information to fill in the missing table entries. Experiment JA] (M) BỊ (M) Initial rate (Mis) 1 0.013 0.250 2.20 x 10 2 0.026 0.250 3 0.500 2.20 x 10 1) Initial reaction rate in experiment 2: <10 M/s (Enter your answer in scientific notation.) 2) Initial concentration of A in experiment 3:

The gas phase reaction between hydrogen and iodine is proposed to occur as follows:.....step 1.....fast:......I2  2 I.....step 2.....slow:....H2 + 2 I  2 HI(1) What is the equation for the overall reaction? Use the smallest integer coefficients possible. If a box is not needed, leave it blank.     +              +     (2)   Enter the formula of any species that acts as a reaction intermediate? If none leave box blank:     (3) Complete the rate law for the overall reaction that is consistent with this mechanism.Use the form k[A]m[B]n... , where '1' is understood (so don't write it if it's a '1') for m, n etc. Rate =

Can someone help me determine the initial rate please?

Time (min) 0.5 1 15 2 2.5 3 4.7 [Z] (mg/mL) 1 0.66 0.5 0.4 A. 5.1 B. 7.5 C. 9.5 D. 19.5 E. 14.8 0.334 0.286 0.192 From time zero, how long (in min) will it take for the drug's concentration to drop down to 0.05 mg/ml? (Hint: While you can, you do not have to calculate Co to answer this question) Rationale (YRI Chemical Kinetics and Drug Stability: Calculations: Please refer to calculations of the variou

I need to calculate the average value of K. Could you please show all the steps.

Chapter 5. The Nervous System-Neurolo... https://learn-us-cast-1-prod-fleet01-xyth... ALEKS Sabina Lamgadhey - Learn ALEKS Sabina Lamgad O CHEMICAL REACTIONS Solving for a reactant using a chemical equation Sabina Green plants use light from the Sun to drive photosynthesis. Photosynthesis is a chemical reaction in which water (H,0) and carbon dioxide (CO,) chemically react to form the simple sugar glucose (C,H1206) and oxygen gas (0,). What mass of simple sugar glucose is produced by the reaction of 8.45 g of water? Be sure your answer has the correct number of significant digits. x10 EE Check Explanation Privacy 2020 McGraw-Hill Education. All Rights Reserved. Terms of Use 10 MacBook Air F8 F6 F5 F4 * OC %24 II

Name: Lyna Ammi Date: 1/26/2022 Section: 02L Data Report Sheet: The Reaction of Methyl Violet with NaOH: A Kinetic Study 2. What is the value of k?

Initial Concentrations: Exp. 1 Exp. 2 Exp. 3 [NO] 0.210 M 0.210 M 0.420 M दाव 11) () The reaction 2NO(g) +2H₂(g) → N, (g) + 2H₂O(g) was studied at 904°C, and the data in the table were collected. (SHOW CALCULATIONS) [H₂] 0.150 M 0.300 M 0.150 M Ezer b) What is the rate law for the reaction? 1-01-0 Initial Rate 0.0339 M/s 0.0678 M/s 0.136 M/s a) Using the data, determine the order for each reactant. Show any calculations or explain reasoning. c) What is the value of the rate constant, k, for this reaction? -= 12) The reduction half-reaction for the deposit of copper metal is: Cu²+ (aq) +2e → Cu(s) How long will it take to deposit 2.5 g of copper using a current of 3.25 A? (molar mass Cu = 63.5 g/mol, F = 96,500 C/mol) (SHOW CALCULATIONS) 3) (4) Balance the following skeleton oxidation-reduction reaction. The reaction occurs in an acidic solution. (Show all steps and sub steps using the half reaction method) NO+CIO3 → NO3 + HClO₂