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A rectangular block of solid carbon floats at the interace of two immisicible liquids. The bottom liquid is a relatively heavy lubricating oil, and the tip liquid is water. Of the total block, 54.2% is immersed in the oil and the balance is in the water. In a separate experiment, an empty flask is weighed, 35.3 cm3 of the lubricating oil is poured into the flask and the flask is reweighed. If the scale reading was 124.8 g in the first weighing, what would it be in the second weighing?
Consider three different compounds of the hypothetical element X using the table of bond lenghts as a reference, rank the three compounds shown below in order of increasing
15.73 grams of a solution containing 8.43% acetic acid, HC2H3O2, is mixed with water and titrated with a 0.523 M solution of KOH. How many milliliters of the KOH solution are required to reach the equivalence point?
flask shaken until the solution was uniform. A sample of 25.0 mL of this glucose solution was diluted to 0.500 ml then determine how many grams of C6H12O6 are in 100 mL of the final solution?
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?
What is the volume of NH3 produced in the following reaction when 3.0 L of N2 reacts with 4.0 L of H2? N2 (g) + 3H2 (g) -> 2NH3(g)
Why is mercury being replaced by other liquids such as colored alcohol as the temperature-sensing fluid
If the volume of ocean water (calculated above) contains 3.7 percent sodium chloride ("salt") by mass and the density of the water is 1.41 g/mL.
How much heat is released to the surroundings when 1.5 moles of water cools from 150 to 20 at 1 atm? Note that the constant pressure heat capacities, , for water in vapor and liquid form are 36.4 and 75.3 respectively.
A saline solution contains 171 mEq/L each of Na+ and Cl-. how many moles of each of Na+ and Cl- are in 1.50 L of the saline solution.
If the volume of the container is reduced to 15.0 L and the pressure remains at 760 mm Hg total pressure. Calculate the temperature of the gas mixture
Because the potential of pH electrodes can vary, it is necessary to CALIBRATE a pH electrode before use. For many uses, a two-point calibration procedure is appropriate.
Ammonia and hydrogen chloride gases react to form solid ammonium chloride. A 10.0 L reaction flask contains ammonia at 0.450 atm and 22°C, and 164 mL of hydrogen chloride gas at 7.50 atm and 271 K is introduced
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