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An overly efficient student simultaneously prepared two titration mixtures, consisting of diluted bleaching solution, KI solution, and HCI solution. The student found that data from the two titrations yielded significantly diffrent precents NaOCI in the commerical bleaching solution. Which determination would give the higher % NaOCI? Briefly explain.
meteorological balloon contains 375 L of helium at 29°C and 0.928 atm. If the volume of the balloon can vary according to external conditions, what volume would it occupy at an altitude at which the temperature is -40°C and the pressure is 0.031 a..
A chemist wants to make 6.5 L of a 0.270 M solution. What mass in grams should the chemist use?
Write the equilibrium constant expression, Kc , for the following chemical reaction.
What is the percent hydrogen (H) by weight of a solution containing 53.5 mL of CH3COCH3? The density of acetone is 0.788 g/mL.
Pure solid NaH2PO4 is dissolved in distilled water, making 100.0ml of solution. 10 ml of this solution is diluted to 100.00 ml to prepare the orignal phosphare standard solution.
A certain number of sodium ion lattice points and a certain number of chloride ion lattice points are required. How many chloride ion lattice points are in the unit cell as described above?
Carbon-carbon single bonds in organic molecules have energies about 350 kj/mol. What is the corresponding wavelength.
What would be the resulting molarity of a solution made by dissolving 21.9 grams of KCl in enough water to make an 869-milliliter solution?
oxygen gas is collected over water at 21 degrees C and an atmosperic pressure of 748 mm Hg. What is the partial pressure of oxygen gas in the mixture
What is the rate of entropy generation within the tank? 3.) If we duplicated the stream conditions (temperatures, pressures, and flowrates) with an internally reversible process, what is the maximum rate at which work could be obtained?
A 1.25g sample of ore containing iron pyrite (FeS2) was pulverized and ignited in air, converting the Fe2O3 and SO2. The Fe2O3 produced weighed 0.516g.
Calculate the quantity, in grams, of formic acid and sodium formate necessary to make 500. mL of a buffer that has a formic acid concentration of 0.75 M and a sodium formate concentration of 0.75 M.
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