A treated and filtered wastewater to be used for golf course irrigation has an initial threshold odor of 10. When activated carbon is used to adsorb the odor, the following test results are obtained. CARBON ADDED (mg/L) ODOR NUMBER 0 10 0.4 6.9 1.0 4.5 6.0 1.5 Using the Freundlich adsorption isotherm, determine the minimum dosage of activated carbon required to reduce the odor to a residual value of 0.20.

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.

What is a possible quantum number set for an electron in the 3s orbital of a magnesium atom

Draw the aromatic compound toluene (methylbenzene). show all hydrogen atoms, including those on the ring.