Achemist prepares a solution of nickel(ii) chloride (nicly) by measuring out 61.3 umol of nickel(ii) chloride into a 200 ml volumetric flask and filling the flask to the mark with water. calculate the concentration in umol/l of the chemist's nickel(ii) chloride solution. round your answer to 3 significant digits. x 5 ? explanation check 2009 mew econ aires reserved. terms of use

There are main groups in the modern periodic table of elements

Answer from each drop-down menu. e characteristics of a borane molecule (bh). the lewis structure and table of electronegativities are given olecular shape is and the molecule is reset next erved. search e a

You mix the pks of succinic acid are 4.21 and 5.64. how many gramsa graduate student at sdsu wants to measure the activity of a particular enzyme at ph 4.0. to buffer her reaction, she will use a buffer system based on one of the acids listed below, which acid is most appropriate for the experiment? of monosodium succinate (fw = 140 g/mol) and disodium succinate (fw = 162 g/mol) must be added to 1 l of water to produce a solution with a ph 5.28 and a total solute concentration of 100 mm? (assume the total volume remains 1 liter, answer in grams monosodium succinate, grams disodium succinate, respectively.) volumes of 0.05 m nah2po4 and 0.05 m na2hpo4 (pk's for phosphoric acid are 2.15, 6.82 and 12.38). which of the following best describes the resulting solution?