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A person suffering from hyponatremia has a sodium ion concentration in the blood of 0.115 M and a total blood volume of 5.0 L.
An isotonic solution contains 0.95% NaCl by mass per volume. Calculate the percent mass per volume for isotonic solutions containing each of the following solutes at 30 degrees Celsius. Assume a van
A compound is 40.0 % C, 6.70 % H, and 53.3 % O by mass. Assume that we have a 100.- g sample of this compound. What are the subscripts in the empirical formula of this compound?
The dimentionless henery's constant for trichlorothene (TCE) at 23C is 0.4LH2O/Lair. A sealed glass vial is prepared that has a volume of 4ml, overlying an aqueous(water)volume of 36 ml.
The pH of ocean water is about 8.1. If it changes as expected over the next century it may drop by 0.3 to 0.5 pH units. What percentage difference in the hydrogen ion concentration will this make?Is
A mixture of p-nitrophenol and o-nitrophenol can be separated by steam distillation. The o-nitrophenol is steam volatile, and the para isomer is not volatile. Explain. Base your answer on the abilit
Solution, A and b liquids on mixing produced a warm solution.Which type deviation is there and why is that type of deviation
What amount of solid sodium acetate is needed to prepare a buffer at pH 5.2 from 500 mL of 0.10 M acetic acid? The pKa of acetic acid is 4.75.
Calculate the maximum nonexpansion work that can be gained from the combustion of benzene (l) and of H2 (g) on a per gram and a per mole basis under standard conditions.
In a student experiment, the empirical formula of a copper halide was found by adding aluminum metal to an aqueous solution of the halide, displacing copper metal.
Historically, the solid residue that is left after the methylene chloride solution is evaporated has a lower melting point that its literature value, due to impurities. Explain what impurities are
The running engine of an automobile produces carbon monoxide at the rate og 188 g CO per hour.A car is left idling at 293.15 K in a garage that is 6 m long, 4m wide and 2.2m high How long would it t
When 2.0 g of aspirin was shaken up in a flask containing two immiscible liquids it was found that the mole fractions in the two liquids where 0.11 and 0.18.
The initial concentrations of species are 0.10 M A, 0.20 M B, and 0.30 M C, respectively. If the equilibrium constant for the system at this temperature is 36, what will happen as equilibrium is app
What minimum mass of succimer (in ) is needed to bind all of the lead in a patient's bloodstream? Assume that patient blood lead levels are 55 , that total blood volume is 5.0 , and that one mole o
Using data tables and the answer to (A), calculate ?H°f for sucrose.C) The rise in temperature of the calorimeter and its contents as a result of the reaction is 1.743 K. Calculate the heat capa
An (aq) CaCl2 solution has a vapor pressure of 81.6mmHg at 50 degrees C. the vapor pressure of pure water at this temp is 92.5 mmHg. what is the concentration of CaCl2 in mass percent?
A container of an ideal gas originally at 30 degrees C is heated to a temperature of 317 C. By what factor does the pressure increase?
Calculate the molar composition of the product gas for each of the following three cases: (i) theoretical air supplied, 100% conversion of butane; (ii) 20% excess air, 100% conversion of butane; and
A mixture of the compounds aluminum chloride and magnesium sulfide contains 48.2 g of aluminum chloride and is 68.3 % by mass aluminum chloride. Calculate the mass (g) magnesium sulfide in the mixt
Calculate the change in molar Gibbs energy of carbon dioxide (treated as a perfect gas) at 200 C when its pressure is changed isothermally from 1.0 bar to (a) 3.0 bar (b) 2.7 x 10-4 atm, its partia
The pH of ocean water is about 8.1. If it changes as expected over the next century it may drop by 0.3 to 0.5 pH units. What percentage difference in the hydrogen ion concentration will this make?
Express the work of isothermal reversible expansion of a vanderwaals gas in reduced variables and find a definition of reduced work that makes the overall expression independent of the identity of t
When a pure sample of tert-butyl bromide is analyzed by gas chromatography, two components are usually observed. One of them is tert-butyl bromide, the other one is a decomposition product.
38 When 2.0 g of aspirin was shaken up in a flask containing two immiscible liquids it was found that the mole fractions in the two liquids where 0.11 and 0.18.