9. Consider the reduction of 10-3 mole/cm³ Cu²+ to Cut which has a diffusion limited current density of -9.2 mA/cm², for a diffusion boundary layer thickness of 10-2 cm and an electrolyte diffusivity, D, of Cu²+ of 1 x 10-6 cm²/s. Determine the diffusion overvoltage at a current density of -4.6 mA/cm². a. -1.78 V b. -0.178 V c. -0.0178 V d. -0.0018 V

Please answer question number 1 correctly with the correct answer. there is a picture of an example of a ''Dimensional analysis Format' below. please write out all work showing the math in dimensional analysis format.   Question 2: What is the molar mass of each of the following compounds?   A. Phosphorus Pentachloride (PCl5)   B. Uranium Hexafluoride (UF6)

A sample of metal weighing 1.4 g is combined with oxygen; the metal oxide weighs 33.5 g. The mass percent of oxygen in the compound is _____.

Please answer question below correctly with the correct answer. there is a picture of an example of a ''Dimensional analysis Format' below. please write out all work showing the math in dimensional analysis format. (please show all work)   Question: How many grams are in 0.658 mol of calcium phosphate {Ca3(PO4)2}

This is not graded! It is strictly for practice. Do questions 1-5.

Please answer both questions?