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Calculate the change in freezing point of water if 0.0053g of a protein with molecular weight 10083g/mol is dissolved in 100mL of water.
For the reaction Cl2 + 2KBr -> 2KCl + Br2, calculate the percentage yield if 200 g of chlorine react with excess potassium bromide to produce 410 g of bromine
Students at the University of North Texas and the University of Washington built a car propelled by compressed nitrogen gas. The gas was obtained by boiling liquid nitrogen stored in a 195.0 L tank.
Use the Heisenberg uncertainty principle to calculate the uncertainty (in meters) in the position of a honeybee weighing 0.67 and traveling at a velocity of 0.80 . Assume that the uncertainty in the velocity is 0.1.
sodium hydroxide to copper(II) nitrate and use a stirring rod to test if the solution is basic. How do you establish whether the solution is basic
How many milliliters of 0.10 M HCl must be added to 21.9 mL of 0.40 M HCl to give a final solution that has a molarity of 0.25 M
What is the pH of an acetic acid-potassium acetate buffer if the salt concentration is 40% higher than that of the acid
a solution contains 0.10m iodide ion i- and 0.10mcarbonate ion co32-. if solidpbno32nbspis slowly added to the
1. calculate the h of a solution obtained by mixing 1 l of hydrochloric acid 1.0 m with 1 litre of sodium hydroxide
a solution is prepared by adding 80.0 ml of 0.090 m hbr to 130.0 ml of 0.50 m hi. calculate the concentrations of all
Why are the bond angles of methane, ammonia, and water different for each even though the electron domain geometry is the same for each
For a particular redox reaction MnO2 is oxidized to MnO4- and Ag is reduced to Ag. Complete and balance the equation for this reaction in basic solution
estimate the mean ionic activity coefficient for nacl in a solution that is 0.020 molkg naclaq and 0.035 molkg cano32
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