Defined medium -22 mM glutamate(C5H9NO4)
-20mM NH4Cl
-0.5 mM MgSO4 · 6 H2O
-0.8 mM CaCl2 · 2 H2O
-Trace elements and vitamin solution (sufficient amounts of Fe3+, Mn2+, Co2+, Cu2+, Zn2+, Ni2+, biotin, etc.)
-14 mM potassium phosphate buffer, pH 6.6 to 6.7
how many moles of nitrogen are provided per liter of the medium?

Which of the following statements is true? a. elements in the last period are radioactive. b. atomic weight is the same as atomic mass. c. elements in the same group have the same number of electron shells. d. atomic number equals the number of neutrons in the nucleus of an atom.

Achemist wants to extract copper metal from copper chloride solution. the chemist places 0.50 grams of aluminum foil in a solution containing 0.75 grams of copper (ii) chloride. a single replacement reaction takes place. (ii) chloride. a single replacement reaction takes place. which statement explains the maximum amount of copper that the chemist can extract using this reaction? a) approximately 0.36 grams, because copper (ii) chloride acts as a limiting reactant b) approximately 1.8 grams, because copper (ii) chloride acts as a limiting reactant c) approximately 0.36 grams, because aluminum acts as a limiting reactant d) approximately 1.8 grams, because aluminum acts as a limiting reactant

Give the set of reactants (including an alkyl halide and a nucleophile) that could be used to synthesize the following ether: draw the molecules on the canvas by choosing buttons from the tools (for bonds and charges), atoms, and templates toolbars, including charges where needed. ch3ch2och2ch2chch3 | ch3