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What mass of sucrose should be combined with 478 of water to make a solution with an osmotic pressure of 8.60 at 320 ? (Assume the density of the solution to be equal to the density of the solvent.)
Sodium carbonate ( Na_2CO_3) is used to neutralize the sulfuric acid spill. How many kilograms of sodium carbonate must be added to neutralize 5.04×103 kg of sulfuric acid solution?
35 mL air sample collected at 31 C has a pressure of 575 torr. What pressure will the air exert if it is allowed to expand to 476 mL at 56 ? C? Answer in units of torr.
What mass of solution contains each of the following amounts of dissolved solute? 1.) 5.0g of sulfuric acid in a 25.0\% solution 2.) 11.0g of acetic acid in a 5.00\% solution
Consider a 20 mol % mixture of hexane (P°=72kPa) in toluene (P°=35kPa). Calculate the fraction of hexane molecules that reside in the vapor above the solution.
Consider an electrochemical cell constructed from the following half cells, linked by a KCl salt bridge. The nickel electrode loses mass and the nickel electrode is the cathode.
Find the average value of the electron-nucleus seperationin a hydrogen like atom in the 2pz (ml=0) state.
A lake has a pH of 8 and the total molar concentration of nitrogen species (NH3 and NH4+) is 7.1×10-4 mol/L. what is the percentage of aqueous NH3 in the lake
how many no. of hydrogen ions are present in 10 millionth part of 1.33 cc of pure water at 25 degree celsius.
Various types of medicines use in daily life? and classify them into analgesics, antipyretics, antibiotics, sedatives, antiseptics.
Calculate the final hydrogen ion concentration of a solution after 25.0 mL of 0.500 M HCl is treated with 40.0 mL of 0.0500 M Ba(OH)2(aq) and diluted to 100.0 mL.
What metal occurs in a vast limestone deposits and combines with oxygen to form an oxide with a formula MO ?
Calculate the pH after 10.0, 20.0, 30.0, and 40.0 ml of 0.100M NaOH have been added to 40.0ml of 0.100M HClO.
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