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Problem- What is the final temperature (in C) of a 45g sample of zinc (s=.388J/gK) which evolves (-10.33)J of heat when it cools from 90.2C?
Illustrate structures to prove your interpretation.
what is the molarity of the acetic acid solution if 45.0l of 17m acetic acid is diluted to
Calculate the equilibrium concentrations of CH3Cl, CH3OH, OH and Cl in a solution prepared by mixing equal volumes of 0.1M CH3Cl and 0.5M NaOH . In defining x , assume that the reaction goes 100% to completion, and then take account of a small amo..
The following data were obtained on the rate of lactose decomposition as a function of acid and lactose concentration. Using this information, determine the rate law expression and the value of rate constant for the acid-based hydrolysis of lactos..
Based on their reduction potentials, what are the most likely cathode products in the electrolysis of an aqueous solution containing 1M LiCl, 1M FeCl2 and 1M CoCl2
Why does an atomic absorption instrument not need a high resolution monochromator, but an atomic emission instrument does
Calculate the change in internal energy of the following system: a 100.0-g bar of gold is heated from 25 ?C to 50 ?C during which it absorbs 322 J of heat. Assume the volume of the gold bar remains constant.
What is the vapor pressure of a solution with a benzene to octane molar ratio of 2:1. Vapor pressure at 50 C of benzene is 280 mmHg and of octane is 400 mmHg.
What is the rate of reaction when the initial concentrations of NO and O2 are 0.030 M and 0.025 M, respectively? 2 NO(g) + O2(g) --> 2 NO2(g)
two solutions initially at 24.60degc are mixed in a coffee cup calorimeter ccal 15.5 jdegc. when a 100.0 ml volume of
What is the volume of 1.31 kg of mercury at 25 C? You can use any reliable reference to look up the density of mercury.
A 2 liter bottle contains a solution of sugar in water. there are 2 moles of sugar in the bottle. what is the morality of the solution. show your calculations.
When one mole of H20(g) is condensed to 1 mole of H20(l) at 1.00 atm and 100C, 40.66 kJ of heat is released. If the density of H20(l) at this temperature and pressure is .996 g/cm^3, calculate
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