we created a galvanic cell using zinc and copper electrode immersed in zinc sulfate and copper sulfate respectively. the concentration of copper sulfate is 0.05 M. the reading on the multimeter was 1.06 V. T = 23°C calculate the concentration of zinc sulfate using nernst equation.

Calculate the concentration of an unknown solution in a concentration cell. A concentration cell consisting of two hydrogen electrodes (P H2- latm), where the cathode is a standard hydrogen electrode and the anode solution has an unknown pH, has a cell voltage of 0.193 V. What is the pH in the unknown solution? Assume the temperature of the solutions is 298 K. !! pH =

Suppose you set up an electrochemical cell. In one beaker, you have a 1 M copper(I) ion solution with a copper metal electrode. You use an external wire to connect the cop electrode to an aluminum electrode in another beaker with a 1 Maluminum lon solution. Then you add a salt bridge with sodium sulfate ions. All things are in place to have functional cell. Which of the following statements is FALSE? Nothing will happen until you add an external power source. Without a power source, electrons will travel from the aluminum beaker to the copper beaker You can run this as a voltaic cell and get out a maximum of 2.00 V You can run this as an electrolytic cell only if you input a minimum of 2.00v

Calculate the cell potential of a voltaic cell given the following standard potentials: X -> X2+ + 2 e-         Eo = -1.69 V Y3+ -> + 3 e- -> Y        Eo = 0.94 V    Note: Answer in 2 decimal places.

Fully label the unlabelled Galvanic cell below using the following information: Electrodes: Magnesium and Zinc Salt Bridge: KNO3 a- Identify the anode and cathode (and the solution each is in) b- Write the anode and cathode half-cell reactions c- Write the overall cell reaction d- Show the direction of e- flow e- Show the direction of ion flow in the salt bridge f- Predict which electrode will increase in mass and which electrode will decrease in mass. Explain your answer.

6. Electrolysis of water using platinum electrode produces oxygen gas at the anode and hydrogen gas at the cathode according to the following half-cell reactions. Anode: 2H20 → 02 + 4H* + 4e Cathode: 4H20 + 4e → 2H2 + 40H- Determine the mass of hydrogen gas that are liberated after 5mins wit a current of 0.2 A. Given atomic mass of hydrogen, H is 1 g/mol, 1 Faraday = 96500 C/mol e

What is the voltage of the following cell? Use the Reduction Potential Table found in Chapter 17 notes. Cr(s)|Cr³*(0.25 M) || |2(s)|1-(0.20 M)|Pt(s)

A certain metal M forms a soluble sulfate salt M₂SO4. Suppose the left half cell of a galvanic cell apparatus is filled with a 3.00 M solution of M₂SO4 and the right half cell with a 30.0 mM solution of the same substance. Electrodes made of M are dipped into both solutions and a voltmeter is connected between them. The temperature of the apparatus is held constant at 35.0 °C. Which electrode will be positive? What voltage will the voltmeter show? Assume its positive lead is connected to the positive electrode. 0 Be sure your answer has a unit symbol, if necessary, and round it to 2 significant digits. left right x10 X Ś

Consider a galvanic cell created from the following redox reaction: 3Zn (s) + 2Au3+ (aq) → 3Zn2+ (aq) + 2Au (s) 1) Draw out a schematic diagram (as shown in image)  2) Label each component (anode, cathode, salt bridge, solution choice, and electron flow direction) in your schematic diagram.

M(NO3)3. Suppose the left half cell of a galvanic cell apparatus is filled with a 2.00 M solution of M(NO3), and A certain metal M forms a soluble nitrate salt the right half cell with a 1.00 mM solution of the same substance. Electrodes made of M are dipped into both solutions and a voltmeter is connected between them. The temperature of the apparatus is held constant at 30.0 °C. Which electrode will be positive? left O right What voltage will the voltmeter show? Assume its positive lead is connected to the positive electrode. 0 Be sure your answer has a unit symbol, if necessary, and round it to 2 significant digits. X olla Ar