Consider a cell membrane at 298k which has glucose at the concentration of 200mm inside the cell and 20 mm outside the cell, with the voltage being 50 mv lower in the interior. calculate the molar free energy difference for transporting a glucose molecule from the exterior to the interior of the cell. a. -2.7 kj/molb. -5.7 kj/molc. +2.7 kj/mold. +5.7 kj/mol

The melting point of sulfur is 115 °c and its boiling point is 445 °c. what state would sulfur be in at 200 °c?

Tooth enamel consists mainly of the mineral calcium hydroxyapatite, ca_10(po_4)_6(oh)_2. trace elements in teeth of archaeological specimens provide anthropologist with clues about diet and diseases of ancient people. students at hamline university measured strontium in enamel from extracted wisdom teeth by atomic absorption spectroscopy. solutions with a constant total volume of 10.0 ml contained 0.726 mg of dissolved tooth enamel plus variable concentrations of added sr. added sr find the concentration of sr in the 10 ml sample solution in parts per billion = ng/ml. find the concentration of sr in tooth enamel in parts per million = mu g/g.

In as 1°, 2°, 3°, or 4°. be to . : °b: °c: °d: ° : °b: °c: °d: ° : °b: °c: °d: °e: °f: °g: °h: ° : °b: °c: °d: °e: °f: °g: °h: °i: °