The metal A has a density of 12 g/cm3 and a molar mass of 47…

The metal A has a density of 12 g/cm3 and a molar mass of 47 g/mole. It’s reduction half reaction look like this:  A3+ + 3e- –> A How long would it take to create a layer of solid A that has a depth of 0.03cm on one side of a 212cm x 85cm plate if you have a current of 45 A?

If you used a standard calorimeter with 2.5L of water, and t…

If you used a standard calorimeter with 2.5L of water, and the temperature of the water changed from 18 degrees Celsius to 23 degrees Celsius, the specific heat capacity of water is 4.18 J/goC a) was the reaction endothermic or exothermic (explain how you know and what it implies about the reactants and products)? b) how much energy was released/absorbed?