Nuclear submarines can stay underwater for months in part because they can produce oxygen for the crew to breathe via the electrolysis of water. The half reactions for this process are provided: 2H2O → O2 + 4H+ (aq)+ 4e-
2H+(aq) + 2e- → H2

Required:
a. Calculate the minimum current needed (in amperes) to produce enough oxygen to meet the daily needs of a crew of 10 people. The average person needs 0.840 kg of O2 gas per day.
b. Assume that 5.364 x 10^27 MeV are needed to power the submarine for a 1-year voyage. Based on your result from Part A, how much 235U (in kilograms) is needed for the submarine reactor to produce this much energy.

What is the number of moles in 15.0 g ash3?

In an investigation that uses the scientific method, which step immediately follows making a hypothesis? o summarizing the results o asking a question o making observations designing an experiment mark this and retum save and exit next submit

Lab reagent, hypothesis test.a reference solution used as a lab reagent is purported to have a concentration of 5 mg/dl. six samples are taken from this solution and the following concentrations are recorded: (5.32, 4.88, 5.10, 4.73, 5.15, 4.75) mg/dl.these six measurements are assumed to be an srs of all possible measurements from solution.they are also assumed to have a standard deviation of 0.2, a normal distributin, and a mean concentration equal to the true concentration of the solution.carry out a significance test to determine whether these six measurements provide reliable evidence that the true concentration of the solution is actually not 5 mg/dl.