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calculate the molarity of each of the following solutions: a) .500 mol of sucrose in .200 L of a sucrose solution. b) 30.4g of LiBr in 350 mL of a LiBr solution. c) 73.0 g of HCl in 2.00 L of a HCl solution.
If 27.0 mL of 0.0200 M KMnO4 were required to titrate a 0.425 g sample of K3[Fe(C2O4)3] * 3H2O, what is the % purity of the complex
a mixture of gases containing .20 mol of SO2 and .2 mol of O2 in a 4.0L flask reacts to form SO3. If the temperature is 25C, what is the pressure in the flask after reaction is complete?
What is the pH of this solution? What is the concentration of the molecular species H3PO4?
use maxwell distribution of speeds to estimate the fraction of CO2 molecules at 300K that have speeds in the range 200 to 250 m/s.
A 15.0-g sample of a hydrocarbon is placed in a balloon at 1.00 atm and 25°C, and the volume of the balloon is 12.2 L. The hydrocarbon is 79.89% carbon and 20.11% hydrogen by mass. Determine the molecular formula of the hydrocarbon.
What is the pH of a buffer solution containing 0.155 mol dm-3 of benzoic acid and 0.315 mol dm-3 sodium benzoate.
What is the volume of 290. mL of oxygen gas at 112°C and 790. mm Hg if the conditions are adjusted to STP? Assume the amount of gas is held constant.
What is the volume of 1.31 kg of mercury at 25 C? You can use any reliable reference to look up the density of mercury.
No carbon atom in the structure of Y has more than one oxygen atom bonded to it, and Y can exist in two (and only two) stereoisomers forms. What are the structures of these forms of Y?
Synthesis of Dibenzalacetone from Bezaldehyde and Acetone, Reacting Benzaldehyde with acetone to yield Dibenzalacetone.
determine at what pressure will pure H 2 O start to boil if its temperature is seventy five degree Celsius
The addition of barium nitrate solution, followed by dilute hydrochloric acid, to a solution of sodium dichromate.
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