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An astringent is a compound that causes proteins in blood, sweat , and other body fluids to coagulate, a property put to use in deodorants. Two safe and effective astringents are the ionic compound of aluminum with sulfate ion and with acetate ion. Write the formulas of both.
The ionic compound containing ammonium ion and carbonate ion gives off the odor of ammonia, a property put to use in smelling salts for reviving someone who has fainted. Write formula for this compound.
Ringers solution, which is used intravenously to adjust ion concentration in body fluids, contains the ions of sodium, potassium, calcium, and chlorine. Give the names and symbols of these ions.
Is molybdenum more likely to form a cation or an anion? Why?
Calculate the formal charges of the atoms in CO, CO2 and CO3

Draw the pH scale of the following non-aqueous solvents.

  • Acetonitrile                             
  • Ethanol

Describe the chemical characteristics of amphiprotic and aprotic solvents.

1.     Calculate the pH of the following solutions:

A.     0.01 M NaOH                                               

B.     1.0 x 10-8 M HCl


An isotonic saline solution was prepared by dissolving 0.92g of NaClin

2 points

enough distilled water to make 100ml solution. What is the percent by

mass/volume of the solution?


An isotonic saline solution was prepared by dissolving 0.92g of NaClin

2 points

enough distilled water to make 100ml solution. What is the percent by

mass/volume of the solution?


5. What is the molality of a 10% by mass NaCl solution when used in qualitative determination of tannins in plants? *




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