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An aqueous solution freezes at -2.64 ?C.What is the molality of the solution? Assumethat there is no dissociation of the solute andthat kfis 1.75 K · kg/mol.Answer in units of mol/kg.
Calculate the osmotic pressure of a solution that contains 0.151 g of sucrose (MW = 342g/mol) dissolved in 367 g of water at 21?C.You may assume that the density of the solutionis essentially that of pure water.Answer in units of torr.
imagine that you dissolve 10.0g of a mixture of nano3 and kf in 100.0g of water and find that the temperature rises by
Which ground-state atom has an electron configuration described by the following orbital diagram? A antimony B germanium C indium D lead E tin
What is the fractional conversion of ethane. What is the production rate of ethanol.
9.92 grams of a compound with a molar mass of 124.0 grams/mole when dissolved in 150.0 grams of water gave a solution which had a freezing point of -2.69 °C. Calculate the experimental value of the van't Hoff factor.
An acre-foot of water Covers an acre to a depth of exactly 1 ft. An acre is 4840 yd2. An acre- foot is enough water to supply two typical households for 1.00 yr. (a) If desalinated water costs $1950 per acre- foot, how much does desalinated water ..
What is the single-particle collisional frequency (for diatomic Nitrogen)at sea level, with 341 and 1.0 atm. The corresponding single-particle collisional frequency is reported as 10^10 s^-1.
Why is it important to use distilled or deionized water rather than tap water when performing all experiments?
She claims that the uncertainty of the bacterium's position is greater than the microscope's viewing field also the bacterium is thus impossible to locate. Define what is the uncertainty of the position of the bacterium. State your answer numerical..
a 5.0g sample of a hydrate of cacl2 was heated and only 4.3 g of the anhydrous salt remained. what is the percentage of
Derive a relation for ( hint: Maxwell's relations will be helpful) to determine how entropy will change with pressure at constant temperature (δS/δp)t for a gas that behaves according to the following equation of state PV = nRT/a + P/b, where a ..
Consider 50.00 mL of 0.100 M lactic acid (Ka = 1.4 × 10-4) that is titrated with 0.100 M NaOH. a. What is the pH at the midpoint (also called half-way point) of the titration
The solubility of CaSO4 in pure water at 0.0 C is 1.13 gram per liter; what is the value of solubility product
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