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If 0.250 L of aqueous solution with a density of 1.00 g/mL contains 13.7 micrograms of pesticide, express the concentration of pesticide in ppm
calculate the weight of potassium chlorate required to prepare 380ml of wet oxygen collected over water at 20degrees
Instructions are given to administer 65 mg of a diuretic over 2 hours by IV. If the 500mL bag contains 300mg what flow fate (ml per ohur) would be used?
Estimate the triple point pressure and teperature of water, given that the standard enthalpies of fusion and vaporization are 6008 J/mol and 43990 J/g at 273.15 K and 298.15 K, repectively
Propose the kinds of attractive forces that might bind congo red to cotton fabric.
Some AgCl(s) has been placed in a beaker of water. After some time, the solubility of Ag+ and Cl- was measured to be 2.5 x 10-5 M. Determine whether the system has reached equilibrium.
If the Ka of a monoprotic weak acid is 8.0 × 10-6, what is the pH of a 0.41 M solution of this acid
Draw the biuret reaction (i.e. include a structure) with a peptide(s) of your choice. You may use R to denote the amino acid side chains
calculate the molar concentration and the molarity of a sulfuric acid solution of density 1.198 g/mol,
A compound is composed of only C and H. It contains 88.82% C by mass and has a molar mass of 54.09 g/mol. What is the correct molecular formula
Zinc sulfide reacts with nitric acid to give zinc sulfate and nitric oxide calculate the mass of zinc required to react with 110mL of 0.15M nitric acid
how many grams of sucrose, c12h22o11, must be dissolved in 750 ml of water to prepare a 0.250 molal solution?
How many moles of sodium choloride should be put in a 50.0 ml volumetric flask to give 0.15 molarity NaCl solution when the flask is filled to the mark with water
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