Chemistry, 29.08.2020 18:01 naajaae5040
Calculate the weighted average atomic mass for this unknown element with three
isotopes: X-44 with a mass of 43.955 amu and a relative abundance of 2.1%, X-
40 with a mass of 39.963 amu and a relative abundance of 96.9%, X-42 with a
mass of 41.959 amu and a relative abundance of 0.7%. Identify the unknown
element based upon the weighted average atomic mass.
Answers: 3
Chemistry, 22.06.2019 03:30
Asample of ammonia reacts with oxygen as shown. 4nh3(g) + 5o2(g) 4no(g) + 6h2o(g) what is the limiting reactant if 4.0 g of nh3 react with 8.0 g of oxygen? o2 because it produces only 0.20 mol of no. nh3 because it produces only 0.20 mol of no. o2 because it produces two times less no than nh3. nh3 because it produces three times more no than o2.
Answers: 3
Chemistry, 22.06.2019 05:00
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?
Answers: 2
Chemistry, 22.06.2019 07:00
If there is any 12 to 14 girls that need a boyfriend just follow me and let me know
Answers: 1
Chemistry, 22.06.2019 12:10
|using the periodic tablewarm-upuse the periodic table in the tools bar to answer the following questions.what elemental classification does oxygen belongto? done
Answers: 3
Calculate the weighted average atomic mass for this unknown element with three
isotopes: X-44 with...
Mathematics, 30.03.2021 17:40
Mathematics, 30.03.2021 17:40
Mathematics, 30.03.2021 17:40
Mathematics, 30.03.2021 17:40
Mathematics, 30.03.2021 17:40
History, 30.03.2021 17:40
Mathematics, 30.03.2021 17:40
English, 30.03.2021 17:40
Mathematics, 30.03.2021 17:40
Mathematics, 30.03.2021 17:40
Mathematics, 30.03.2021 17:40
Mathematics, 30.03.2021 17:40