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A 3340 g solution of HO(CH2)2OH and water contains 0.362 L of ethylene glycol. Calculate the mole fraction of HO(CH2)2OH in the solution.
HNO3 was required for complete reaction with 0.8784+or- 0.0008g of Na2CO3 (FM 105.988+or- 0.001). Find the molarity of the HNO3 and its absolute uncertainty
a 720-mL sample of water was cooled from 60 degrees celsius to 10 degrees celsius. How much heat was lost?
Although the yield of methamphetamine is good, some unreacted phenyl-2-propanone remains after the reaction is complete. Describe how methamphetamine can be separated from phenyl-2-propanone.
according to the following reaction how many moles of calcium oxide will be formed upon the complete reaction of 29.3
Why should the 10% sodium bicarbonate solution be added SLOWLY to the reaction mixture of acetic acid and n-octyl alcohol when creating n-octyl acetate. What by-product is being created
A 0.2 M sodium chlorobenzoate (NaC7H4ClO2) solutions has a pH of 8.65. Calculate the pH of a 0.20 M cholorbenzoic acid (HC7H4ClO2) solution.
a gas mixture composed of helium and argon has a density of 0.853gl at a 745mmhg and 298k. what is the composition of
Assuming no energy is transferred to or from the surroundings, calculate the final temperature of the water after all the ice melts.
Enough Al2(SO4)3 solid is added to water to prepare 100.0 mL of a 0.150 M solution of aluminum sulfate. What is the concentration of sulfate ion in solution?
The osmotic pressure of a aqueous solution of a given polymer with mass concentration 0.300 g/mL is 10.0 torr at 298 K. Estimate the molar mass of the polymer.
Consider titrating 15.0ml of a .245M solution of hydazine, H2NNH2, with a .453M HCl solution. The Kb value for hydrazine is 1.3x10^-6 b) what volume of HCl needs to be added to the solution in oder to have a bffer system with the maximum capacity ..
How many L of solvent should be added to 0.46 L of a 0.28 M solution if you want a final concentration of 0.13 M.
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