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How do you calculate the density of metals? Could this method be used for determining the density of mercury as well? Briefly explain your answer.
A solution is prepared by dissolving 23.7 g of CaCl2 in 375 g of water. The density of the resulting solution is 1.05 g/mL. The concentration of CaCl2 in this solution is molar
what hybrid orbitals are used about the central atom of each of the angles.
at 700.degc the total pressure of the system is found to be 3.78 atm. if the equilibrium constant kp is 1.52 calculate
A 2.50-g sample of a large biomolecule was dissolved in 37.0 g of carbon tetrachloride. The boiling point of this solution was determined to be 77.85°C.
The label on a bottle of concentrated HCl says the contents are 36% HCl by mass and have a density of 1.179 g/mL. What is the Molarity of the Conc. HCl.
A sample of compound B having an unknown concentration is measured to have an absorbance of .90 in a 1.00 cm path length cell at 500 nm. What is the concentration of B in this sample, assuming Beer's law holds
Isopropyl alcohol is mixed with water to produce a 31.0% (v/v) alcohol solution. How many milliliters of each component are present
What is the pressure of the gas in mmHg if the volume is changed to 8.53 L? The temperature remains constant. In scientific notation.
Experiments have shown that the average frequency of chirping by a snowy tree cricket depends on temperature as shown below. Chirping Rate Temperature
Each of 2 front tires in the car is filled with a different gas. One tire contains 116 g of helium, another tire has 160 g of unknown gas. How many times heavier is a molecule of the unknown gas than an atom of helium
What is the pH of a solution that results from adding 150.0 mL of 0.200 M HCl to 150.0 mL of 0.350 M NH3? (Kb of NH3 = 1.8 x 10^-5)
Suppose you wished to control the PO43- concentration in a solution of phosphoric acid by controlling the pH of the solution. If you assume you know the H3PO4 concentration, what combined equation would be useful for that purpose? Include physical..
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