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The protein concentration of a 1/10 dilution of a BSA sample was measured and found to be 0.45 mg/mL. Explain what is the protein concentration of the original concentrated BSA solution?
Freons are controversial because of the damage they do to the ozone layer in the stratosphere. A 4.33-g sample of a particular freon in a 2.55 L bulb at 25°C has a pressure of 262 torr. What is the molar mass of the compound
what is the concentration of the dye in a solution with a percent transmittance reading of 45.8% at 640 nm
The following isotopic cluster was observed in a mass-spectrum of a parent peak of a halogenated compound:
A cylindrical bar of copper 1.25 meters long and 2.22cm in diameter is initially at a temperature of 14°C. The bar is heated until it increases length by 1.77mm.
The empirical formula for the hydride of sulfur is H2S, and its central atom is sulfur. Based on this information, you would expect the empirical formula for the hydride of selenium
A swimming pool is 26.15 yards long and 40.04 feet wide. The pool is filled with water from a hose that has a flow rate of 2.852 gallons/second. How many minutes will it it take to fill the pool to a depth of 4.771 feet
What is the chloride concentration when 25ml of 0.1 M AlCl3 and 25 ml of 0.5 M NaCl are mixed together. Assume the volumes are additive.
Uranium hexaflouride is a solid at room temperature but boils at 56 C. Determine the density of uranium hexaflouride at 60 C and 745 torr.
Suppose a piece of silver jewlery contains 5.00 * 10^22 of silver. how many dozens of silver atoms are in the piece of jewlery.
Propane (C3H8) is widely used in liquid form as a fuel for barbecue grills and camp stoves. For 76.6 g of propane, determine the following, in 4 significant figures.
Determine how many moles of SO 3 are formed if 12.24 moles of O 2 react with excess SO 2 ,? use the balance equation given as 2SO 2 (g)+O 2 (g)----> 2SO 3 (g)
A solution is prepared by dissolving 0.15mol of acetic acid and 0.15mol of ammonium chloride in enough water to make 1.0 L of solution. Find the concentration of ammonia in the solution.
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