32p has a half-life of 143 days. The original sample of 920 has a mass of 1.88mg Approximately what mass of P-32 wil remain after 6 half-lives? O None of the answers are correct 00.352 mg O 0.101 mg 0 0.0588 mg 0.188 mg 0.0294 mg

Why are the trends and exceptions to the trends in ionization energy observed?

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?

Design techniques and materials that reduce the negative environmental impact of a structure are referred to as