You have a stock solution certifi ed by a manufacturer to contain 150.0 6 0.3 mg so22 4 /ml. you would like to dilute it by a factor of 100 to obtain 1.500 mg/ml. two possible methods of dilution are stated below. for each method, calculate the resulting uncertainty in concentration. use manufacturer’s tolerances in tables 2-3 and 2-4 for uncertainties. explain why one method is more precise than the other. (a) dilute 10.00 ml up to 100 ml with a transfer pipet and volumetric fl ask. then take 10.00 ml of the dilute solution and dilute it again to 100 ml

explanation:

two years ago, when picking flowers in the mountains back of yosemite valley, i found a book. it was blotted and storm-beaten; all of its outer pages were mealy and crumbly. the paper seemed to dissolve like the snow beneath which it had been buried, however; many of the inner pages were well preserved. and although all were more or less stained and torn, whole chapters were easily readable. this is the condition of the great open book of yosemite glaciers today; its granite pages have been torn and blurred by the same storms that wasted the castaway book.

two years ago, when picking flowers in the mountains back of yosemite valley; i found a book. it was blotted and storm-beaten, all of its outer pages were mealy and crumbly. the paper seemed to dissolve like the snow beneath which it had been buried, however, many of the inner pages were well preserved. and although all were more or less stained and torn; whole chapters were easily readable. this is the condition of the great open book of yosemite glaciers today, its granite pages have been torn and blurred by the same storms that wasted the castaway book.