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There are limitations to the amount of pressure that can be applied during reverse osmosis because of the physical nature of the membrane. A membrane has been developed that can withstand osmotic pressures, , of up to 1.62×10^5 torr . Calculate the maximum molar concentration of a solution that can be purified by reverse osmosis using this membrane at 25 degree C.
Calculate [H3O ], [ClO4-], and [OH-] in an aqueous solution that is 0.110 M in HClO4(aq) at 25 °C. is the solution acidic, basic, or neutral
A person ate 0.999 pound of cheese (an energy intake of 7990 kJ). Suppose that none of the energy was stored in his body. What mass (in grams) of water would he need to perspire in order to maintain his original temperature? (It takes 44.0 kJ to v..
How many kilograms of sodium fluoride would be needed to treat a 8.00 x 10^7 gal reservoir
An aluminum atom has a diameter of 143 pm. How many aluminum atoms can be placed on a line 1.00 mm long
What is the mass percent of sucrose (C12H22O11, Mm=342 g/mol) in a 0.350-m sucrose solution?
If we have benzene, acetyl chloride, AlCl3 and HCl in a solution of NaoH and CH2Cl2 which of these will be in the NaOH layer and Which of them will be in the CH2Cl2 layer
The principle quantum number defines the shell (which is roughly, but not quite exactly, the row, or period, of the periodic table). Demonstrate the difference between the rows of the periodic table
What each test reveals about an unknown halide ion? Suggest another test which would confirm that identity. 1.Addition of Cl2 and CH2Cl2 to an aqueous solution of an unknown halide ion led to a dark CH2Cl2 layer.
How much heat in kilojoules is required to warm 10.0 g of ice, initially at -10.0^\circ C, to steam at 110^\circ C. The heat capacity of ice is 2.09 {\rm J}/{\rm g} ^\circ {\rm C} and that of steam is 1.84
A 12.4 g sample of CaCl2 is dissolved in 112 g of water, with both substances at 25.0°C. Calculate the final temperature of the solution assuming no heat lost to the surroundings and assuming the solution has a specific heat capacity of 4.18 J/°C·..
What is the binding energy of an electron in a photosensitive metal (in kJ/mol) if the longest wavelength of light that can eject electrons from the metal is 238 nm? [Data: c = 3.00 x 108 m/s; h = 6.63 x 10-34 Js ]
Draw a logarithmic concentration diagram showing the relationship between [CO2] and [Ch4] as a function of pE for pH=7 and [CO2] +
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