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Question- In reverse osmosis, water flows out of a salt solution until the osmotic pressure of the solution equals the applied pressure. If a pressure of 68.0 bar is applied to seawater, what will be the final concentration of the seawater at 20 °C when reverse osmosis stops.
Assuming that seawater has a total ion concentration (a.k.a colligative molarity) of 1.10 Mc, calculate how many liters of seawater are needed to produce 18.0 L of fresh water at 20 °C with an applied pressure of 68.0 bar.
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At -11.0 °C (a common temperature for household freezers), what is the maximum mass of sorbitol (C6H14O6) you can add to 2.50 kg of pure water and still have the solution freeze? Assume that sorbitol is a molecular solid and does not ionize when i..
When an aldehyde is reacted with an alkyl lithium compound, after acid hydrolysis the result is a) a ketone b) a primary alcohol c) a secondary alcohol d) a tertiary alcohol
Calculate the number of moles of benzaldehyde and thiamine hydrochloride used in the Procedure. Explain why benzaldehyde is used for the theoretical yield calculation
what is the theoretical yield of calcium carbonate if 2.05 grams of calcium chloride dihydrate reacts with excess
The number density of atoms (mostly hydrogen) in interstellar space is about 10 per cm3, and the temperature is about 100K. a. Calculate the pressure of the gas in interstellar space, and express it in atmospheres.
Explain which of salts hydrolize in aqueous solution- CH3COONa, NiCL2, Ca3(PO4)2 state ionic equations for the hydrolysis reactions. Forecast the pH of the solution
Nitric acid can be produced by the reaction of gaseous nitrogen dioxide with water. 3 NO2(g) + H2O(l) -→ 2 HNO3(l) + NO(g) If 927 L of NO2 gas react with water, what volume of NO gas will be produced? Assume the gases are measured under the same c..
A 36.3 ml aliquot of 0.0529 M H2SO4 (aq) is to titrated with 0.0411 M NaOH (aq) What volumen (ml) of base will it take to reach the equivalence point
what is the mole fraction of A in the vapor above a binary solution of A and B in which the mole fraction of A is 0.30?
a compound contains 10.13g of c and 89.87g of cl. determine both the empirical and molecular formulas of the compound
Assuming that P and T are known, which of the following measurements on gas samples would directly yield the information on molecular weight of the gas molecules
Specificy which ion you would add to the unkown and how the results would identify which compound is in the unknown.
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