What is the concentration of the H2SO4 if a chemist titrates 300.0 mL of Sodium Hydroxide NaOH with a 5.0 M solution of NaOH and needs only 3.4 mL of the base to reach the endpoint,?
Suppose that three hundred people are on a transatlantic flight, and sixty of them are smoking. The inside volume of the airplane is five thousands ft3. Compute the make-up air ventilation rate essential to prevent the HCHO concentration from exceeding 0.03 ppm?