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The average osmotic pressure of blood is 7.7 atm at 25.0c. What molarity of a sterile saline (i.e., aqueous sodium chloride) solution is isotonic with blood? (Use a van't Hoff factor of 2.00 for sodium chloride.) Assuming that the density of the sterile saline is 1.0 g/mL, what is the mass percentage of this solution?
In the molecular orbital model of benzene, the six p-orbitals combine to form how many molecular orbitals. In the molecular orbital model of benzene, how many pi-electrons are in bonding molecular orbital
determine the ph of the following solutions, showing calculations.
The pH in a 0.25 M solution of the acid HBrO is 4.65. Using this, calculate the value of Ka for the acid HBrO.
Compute the hydroxide ion concentration in a NH 3 solution that is 0.091 M and 0.028 M NH 4 Cl. Kb of NH 3 is 1.8 x 10 -5 .
Briefly describe the process of recycling. Do you recycle? If yes, what types of items do you recycle? If not, why not?
Examine the nuclide neptunium-237. The nuclide has a measured nuclear mass of 237.048166 amu. Determine the binding enery in kj, kj/mole
What is the pH of a solution made by mixing 25.00mL of 0.200M CH3COOH with 10.00mL of 0.200M NaOH? Ka of acetic acid is 1.8 x 10^-5.
A piston has an external pressure of 8.00 torr How much work has been done if the cylinder goes from a volume of 0.130 liters to 0.450 liters.
Why must you avoid using your hands in handling the magnesium ribbon and the crucible and cover? 2.Why must objects be cooled to room temperature before taking their weights(masses)
The amount of nitrogen in an organic substance can be determined by an analytical method, called the Kjeldahl method, in which all the nitrogen in the organic substance is converted to ammoinia.
how many grams of calcium carbonate , CaCO3, do you need in an antacid tablet to neutralize 20 ml of stomach acid ?
Consider an unknown that is approximately 50.% KHP. What mass of the unknown would be required to react with 40. mL of 0.10 M NaOH?
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