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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 75.0 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 15.4 L of fresh water at 20 °C with an applied pressure of 75.0 bar.
If 12.5 g of sucrose is added to 225 g of coffee by how much will the boiling point change upon adding the sugar? Assume the Bp of coffee is the same as pour water.m.
Find the temperature at which Kp=41.0 for the reaction H2(g)+I2(g) 2HI(g). [Given: at 25 degrees C, for H2(g), deltaH degrees F=0, S degrees=131.0 J/mol*K; for I2(g)
predict the outcome of the synthesis of an azo dye using 4-nitroaniline as the diazonium precursor and benzaldhyde as the coupling agent
When no single electronic formula can be drawn for a stable molecule so as to maintain the octet rule and still fit the observed properties, the situation is best described in terms of
you have 100 mL graduated cylinder containing 50 mL of water. you drop a 154 g piece of brass (d= 8.56 g/cm3) into the water. how high does the water rise in the graduated cylinder?
Assume that the liquid is an ideal solution and apply Raoult's law to find the following. What is the temperature of the liquid?
A 4.305-gram sample of a nonelectrolyte is dissolved in 105 grams of water. The solution freezes at -1.23°C. Calculate the molecular weight of the solute. Kf for water = 1.86°C/m.
what final temprature would be required to increase the pressure to 760 torr. the volume being held consant?
Calculate the pH change that results when 11 mL of 5.8 M NaOH is added to 800. mL of each the following solutions.
The rate of the reaction doubles when the concentration of CH3Cl is doubled and it quadruples when the concentration of H2O is doubled. What is the unit for K?
Borane forms complexes with sulfides and amines. Draw a suitable structure to represent the complex formed between BH3 and dimethyl sulfide
The solubility products of PbSO4 and SrSO4 are 6.3 * 10^-7 and 3.2 * 10^-7, respectively. What are the values of [ SO4 2-], [Pb 2+], and [Sr 2+] in a solution at equilibrium with both substances
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