Perform various calculations related to electrolysis Question mol of electrons are transferred? What charge in coulombs...
Perform various calculations related to electrolysis Question What charge (in coulombs) passes through a cell with a current of 6.20 A in 20.0 min? Remember to use correct significant figures in your answer (round your answer to the nearest whole number). Provide your answer below:
Perform various calculations related to electrolysis Question What charge (in coulombs) passes through a cell with a current of 15.30 A in one hour? Remember to use correct significant figures in your answer (round your answer to the nearest whole number). Provide your answer below: гс
To relate current, time, charge, and mass for electroplating calculations. Electroplating is a form of electrolysis in which a metal is deposited on the surface of another metal. To quantify electrolysis, use the following relationships. Electric current is measured in amperes (A ), which expresses the amount of charge, in coulombs (C ), that flows per second (s ): 1 A=1 C/s Another unit of charge is the faraday (F ), which is equal to a mole of electrons and...
Perform calculations using Ksp Question For the following equilibrium, if Kp = 5.8 x 10-24, what is the molar solubility of scandium fluoride: ScF,(s) Sc (aq) +3F (aq) Report your answer in scientific notation with the correct number of significant figures. Provide your answer below
Perform calculations for polyprotic acids Question Determine the concentration of Croa in a 0.031 M solution of chromic acid, H, CrO4. H,CrO4(aq) + H20(I) = H30+(aq) + HCrO] (aq) Ka = 9.6 HCrO2 (aq) + H2O(l) = H30+(aq) + Cro2- (aq) Kaz = 3.2 x 10-7 Report your answer in scientific notation with the correct number of significant figures. Provide your answer below:
Perform calculations that relate pH and POH Question What is the pH of a solution with [H, 0+1= 1.50 x 10-M? Report your answer to the hundredths place. Provide your answer below:
Perform dilution calculations Question What is the concentration of a solution of K, HPO, inif 250 L of it can be used to prepare 10.0 mL of a 350 mg solution? • Your answer should have two significant figures. (Round to the nearest whole number.) Provide your answer below.
Perform Calculations Using Charles's Law CONTENT FEEDBACK Question If a balloon at 25'C with 2.3 L of volume is expanded to 40.0 L, what will the new Celsius temperature be? Report your answer with the correct number of significant figures. Provide your answer below: degrees C
Use pOH in calculations Question What is the hydroxide concentration in a solution at 25.0° C with (H,0+1 = 4.6 x 10-4 M?! • Report your answer with two significant figures. Provide your answer below: м FEEDBACK MORE INSTRUCTION
#2 1. How many moles of electrons are represented by a total charge of 1.0 C? The charge on A) 6.2 x 10 mol B) 1.6 x 10-19 mol C) 3.5 x 105 mol D) 1.0 x 10 mol 2. The charge on an electron is 1.602 x 10"9 C. How many electrons flow when 55 pJ of an electron is 1.602 x 10-19 C. electrical energy passes through a voltage of 9 V? A) 3.4 x 10 B) 3.8...