There are three naturally occurring isotopes of magnesium: 24
12Mg, 25
12Mg, and 26
12Mg. In
a weird parallel universe, the percentages of
these isotopes are
Magnesium Natural
Isotopes Abundance
24
12Mg / 43.1%
25
12Mg / 19%
26
12Mg / 37.9%

You can assume the masses are equal to the
mass number. Calculate the weight of “naturally” occurring magnesium in this weird
parallel universe.
Answer in units of g/mol. Your answer
must be within ± 0.015%

Margaret wants to make an orange flavored drink by stirring powdered drink mix into a glass of water. she doesn't like drinks that have small clumps of powdered solid in them, so she wants the drink to be a perfect solution. what factors should margaret not consider when deciding how much powder to add to her glass of water?

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?

Chlorophyll a had the molecular formula c55h72mgn4o5 how many atoms are in this molecule