Convert conductivity to molar concentration by using the initial conductivity of the NaOH solution as a conversion factor. Convert each initial rate into the units: mols/L/s. For example, if the initial conductivity of a 0.005 mol/L NaOH solution was 2000 uS/cm and initial rate was 5.0 uS/cm/s, you would convert the rate to moles/ L /s by completing the following calculations: Rate= 5.0uS/cm/s [(0.005 mol/L)(2000 uS/cm)]= 1.25 x 10^-5 mol/L/s.  After calculating using these new values out the rate constant for each trial, what is the average value of k?  Trial NaOH CH3COOC2H5 Initial Condcutivity of NaOH Solution (uS/cm) Initial Rate (uS/cm)/s) 1 21 ml 2.1ml 1285 24.72 2 21 ml 2.1ml 2399 50.32 3 21 ml 2.1ml 1262 23.72

www-awn.aleks.com CHEMICAL REACTIONS Brittney V Calculating molarity using solute mass A chemist prepares a solution of potassium permanganate (KMNO4) by measuring out 1.16 g of potassium permanganate into a 250. mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in mol/L of the chemist's potassium permanganate solution. Round your answer to 3 significant digits. ||mol/L x10 Ar Explanation Check © 2021 McGraw-Hill Education. All Rights Reserved. Terms of Use | Privacy | Accessibility

What is the pH of (3.21x10^-1) M C5H5NHBR? Enter your answer in scientific notation with 3 sig figs. Do not include any units in your answer. Do not round any intermediate calculations. Note: Your answer is assumed to be reduced to the highest power possible. Your Answer: х10 Answer

Glucose (molar mass=180.16 g/mol) is a simple, soluble sugar. Glucose solutions are used to treat patients with low blood sugar. Suppose you prepare a glucose solution using the described procedure.   Step 1: Dissolve 271.8 g of glucose in enough water to make 500.0 mL of solution. Step 2: Transfer 17.7 mL of the solution to a new flask and add enough water to make 250.0 mL of dilute solution.     What is the concentration (in M) of the glucose solution at the end of the procedure?