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A hiker caught in a thunderstorm loses heat when her clothingbecomes wet. She is packing emergency rations which if completelymetabolized will release 30kJ of heat per gram of rations consumed.How much rations must the hiker consume to avoid a reduction inbody temperature of 4.0K as a result of heat loss? Assume the heatcapacity of the body equals that of water and that the hiker weighs55kg.
How long would it take for 1.50 mol of water at 100.0 degrees Celsius to be converted completely into steam if heat were added at a constant rate of 15.0 J/s.
Chromatographic column, it is important to let the level drop in the column eluent to the level of the sand before applying the solution of the compound to be separated. What effect would have on the efficiency of separation ignore this recommenda..
Three moles of C(s) are heated from 300K to 600 K at constant P. Over the temperature range, Cp = -12.19 + 0.1126 T/K - 1.947 x 10-4 T^2/K^2. Find delta H and delta S.
What mass of sucrose should be combined with 453 of water to make a solution with an osmotic pressure of 8.00 at 320 ? (Assume the density of the solution to be equal to the density of the solvent.)
1.00 ml of a 3.45 times 10-4 m solution of oleic acid is diluted with 9.00 ml of petroleum ether forming solution a.
The resulting W3 was transferred to 500.0 mL of 1.00 M HCl. A 100.00 mL aliquot of the HCl solution required 12.26 mL of 0.08855 M potassium permanganate (KMnO4) to reach the purple endpoint.
A hydrogen atom initially in the n=11 quantum state emits a photon having a wavelength of 2.87144E-6 m. What is the quantum number of the final state of the atom
How do I convert Benzene to M-Bromoaniline using HNO3,H2SO4 and BR2FE2BR3, and SNHCL. What is the correct order of the reagents and why
Calculate the volume in, mililiters, of a 1.50M NaHCO3 solution that provides 28.0g NaHCO3, How many grams of H3PO4 is needed to prepare 550mL of a 0.31N solution?
How should a professional emergency responder be concerned about the following routes of radiation exposure for a person on scene and a person downtown?
Global warming refers to the rise in average global temperature due to the increased concentration of certain gases, called greenhouse gases, in our atmosphere.
Calculate the [H+] and pH of a solution made by mixing 30.00mL of 0.238 M CH3COOH with 30.00mL of 0.250 M CH3COONa. (Ka for acetic acid = 1.8x10^-5)
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