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Many biochemical reactions that occur in cells require relatively high concentrations of potassium ion (K+). The concentration of K+ in muscle cells is about 0.15 M. The concentration of K+ in blood plasma is about 0.0050 M. The high internal concentration in cells is maintained by pumping K+ from the plasma. How much work must be done to transport 1.0 mol K+ from the blood to the inside of a muscle cell at 37°C, normal body temperature?
When 1.0 mol K+ is transferred from blood to the cells, why do other ions have to be transported?
calculate the ph of soultion prepared by adding20.0ml of 0.100m hcl to 80.0ml of a buffer that is comprised pf 0.25 M NH2NH2
2-methyl-2-butene and 2-methyl-1-butene with Br2 in CH2Cl2
At 21, the rate constant is0.0110 s^-1 . At what temperature in degrees Celsius would this reaction go twice as fast?
Benzene is a organic solvent with the formula, The volume occupied by 1 micromole of liquid benzene and the volume occupied by 1 megamole of benzene as a vapor at STP (assume an ideal gas)
Calculating Volume, Pressure & Density, Calculate the density, in g/L, of SO2 at 75°C and 1.33 bar. (Round your answer to two decimal places)
What is the smallest number of packages of buns, packages of patties, and jars of pickles, respectively? Express your answer as three integers separated by commas.
What is the difference in volume (in mL) between the water vapor and liquid water? (Assume the density of liquid water is 1.0 g/mL.) C. Why is it dangerous to heat a closed container of liquid to its boiling point?
A buffer is to be prepared with a pH of 4.5 from 0.1M solutions of sodium acetate and acetic acid. How many mL of 0.1M NaAc would have to be added to 100mL of 0.1M HAc to make the proper buffer solution?
The Instructor recently had his car inspected by the KWIK Stocker State Inspection at Webster, Texas. The table below shows part of the Emission Test Results.
Which of the following are exothermic and endothermic?
Mass spectroscopy indicates the molar mass to be about 162 g/mol. What is the molecular formula of the unknown compound?
How many grams of H2O can be cooled from 45 degrees C to 15 degrees C by the evaporation of 63 grams of water.
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