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While 1.199 mole of naphthalene (C10H8), a solid is burned in a constant- volume bomb calorimeter at 298K, 48.19 kJ of heat is evolved. Compute delta U and w for the reaction on a molar basis.
Name one analytical technique you can use to determine if your product is the E,E isomer and not the E,Z or Z,Z isomer.
Given tyrpsin digest yields the following amino acid sequences: k, tyk, wag, and spwr and a chymotyrpsin digest yields ag, rw, ty, and kkspw. what is the primary amino acid sequence of the antibiotic peptide
Calculate the volume of these ten ball bearings in liters (L). In performing the calculation, present your work as unit conversions, and report your answer to the correct number of significant figures.
Metallic chromium can be made by the electrolysis of molten CrCl3. What mass of Cr is formed by passing a current of 7.44 A through molten CrCl3 for 4.10 days? Use F = 96,500 C/mol for Faraday's constant.
earths oceans have an average depth of 38000m a total area of 3.63108km2 and an average concentration of dissolved
A student wanted to determine the molar concentration of acetic acid in a commercial vinegar sample. He used a volumetric pipet to deliver 3.00 mL of vinegar to an Erlenmeyer flask, added about 30 mL orf water and 3 drops of phenolphthalein indica..
Perform a mole balance over all materials to find n3, the molar flow rate of heated air and water vapor leaving the lines. What is the mole fraction of water vapor in the air and water vapor mixture stream leaving the heating lines
a 5.0 ml sample of vinegar was titrated with 7.2 ml of 0.55 m naohaq. if the density of the vinegar solution is 1.00
Explain a sample of water (H2O) contain 8.75 mol of H atoms. Explain how many moles of O atoms does it contain
Calculate the molarity of an aqueous solution that is 5.20% by mass CaCl2, given that the density of the solution is 1.19 g/mL
A helium nucleus has two protons and two neutrons. How many electrons would it take to equal the mass
What is the change in internal energy (in J) of a system that absorbs 0.603 kj of heat from its surroundings and has 0.903 kcal of work done on it
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