One method to determine the flow rate of a turbulently flowing stream is to inject a small, metered amount of some easily dispersed fluid and then to measure the concentration of this fluid in a sample of the mixed stream withdrawn a suitable distance downstream. in pharmaceutical plants, there are often many inert gas streams (i. e., streams that contain mostly nonreacting gases). in a particular plant, there is a process stream that is composed of 95mol% n2(inert) and 5 mol% o2. to determine the flow rate of this process stream, o2 is injected at a flow rate of 16.3 mol/hr. a downstream sample analyzes the o2 content at 10 mol%. you can assume that no reactions occur in the pipe and that the flows are operating at a steady-state. a) how many balanced equations can you write? how many of these are linearly independent? b) calculate the flow rate of the process stream containing 95 mol% n2 and 5 mol% o2.

What is the empirical formula of vanadium 1 oxide given that 20.38 grams of vandium combines with oxygen to form 23.58 grams of the oxide

Dying the folding patterns of protein molecules can microbiologists better understand cellular processes as well as some diseases, such as alzheimer’s, that are caused by proteins that have misfolded. the folding of these complicated molecules can be simulated on computers, but it takes a lot of processor power and time for even expensive supercomputers to do this. a group of researchers at stanford university developed software that can be used to distribute the processing of data to anyone who is willing to donate time on their idle personal computers. as a result, the researchers have been able to achieve protein-folding simulations that are far better than those other computing methods have done. which statement best describes the work of these researchers? the work is not scientific because the data are not processed in one location. the work is not scientific because the simulations are not reproducible. the researchers applied creativity to solve a problem in running an experiment. the researchers used only well-established scientific techniques.

The volume of helium in a blimp is 6.28 x 10^9 millimeters. the density of helium in the blimp is .1786 kilogram/meter^3. find the mass of the helium in the blimp.