An industrial process makes calcium oxide by decomposing calcium carbonate. Which of the following is NOT needed to calculate the mass of calcium oxide that can be produced from 4.7 kg of calcium carbonate?
Answer: Out of all the options presented above the one that is not needed to calculate the mass of calcium oxide that can be produced from 4.7 kg of calcium carbonate is answer choice D) The volume of unknown mass.
Power is measured in Watts, and can we calculated by taking the work done in joules / the time in seconds. Thus, 1 Watt is 1 joule per 1 second (1 Watt = 1J/s)