Arocket engine uses a h2-o2 mixture as a propellant. the mean molar mass of the propellant is 11.58 kg/kmol with ratio of specific heats g = 1.22. the stagnation pressure at the throat of the nozzle is 8.26 mpa and the static temperature at the throat is 3305 k. the throat area at = 750.4 cm2 . the ratio of the exit plane area to the throat area is 39.8 and the static pressure at the exit plane of the nozzle is 18.1 kpa. (a) calculate the mass flow rate of propellant throug

The concept of empiricism states that all rationally accepted knowledge is determined from experience. francis bacon was one of the first scientists to promote this theory. what was it’s impact on society?

What is the ph of a solution that has a hydrogen ion concentration of 1.0 * 10 -9 m?

For a research project, a student decided to test the effect of the lead(ii) ion (pb2+) on the ability of salmon eggs to hatch. this ion was obtainable from the water‐soluble salt, lead(ii) nitrate, which the student decided to make by the following reaction. pbo(s) + 2 hno3(aq) → pb(no3)2(aq) + h2o losses of product for various reasons were expected, and a yield of 86.0% was expected. in order to have 5.00 g of product at this yield, how many grams of pbo should be reacted? (assume that sufficient nitric acid, hno3, would be used.)