Which compounds yield hydrogen ions as the only positive ions in an aqueous solution?
(1) h2co3 and hc2h3o2
(2) h2co3 and nahco3
(3) nh3 and hc2h3o2
(4) nh3 and nahco3

Starch and are common polysaccharide carbohydrates found in plants. sucrose glycogen fructose cellulose

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?

What is the empirical formula of c6h18o3? ch3o c2h5o c2h6o c2h5o5