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What is the internal energy change for the system if 969 joules of heat flows into the system from the surroundings and 253 joules of work is done by the system on the surroundings
Show your work in finding the partial pressure of the nitrogen gas, PN2. 2) Show your work in finding the mass of the nitrogen collected
Naturally occuring chlorine has two isotopes, Cl-35, which has an atomic mass of 34.969 amu and Cl-37. If the average atomic mass of chlorine is 35.46 amu and its natural abundance is 75.53%
calculate the molar mass of an unknown gas if 0.192 grams of the gas occupies a volume of 293 ml at 754.7 mm Hg and 22.5 degrees celsius.
determine the actual yield If the percent yield of the reaction in B was 91% describes the oxidation of ethanol (C 2 H 5 OH) to acetic acid (CH 3 COOH) by potassium permanganate (KMn04
How many kilojoules of energy are required to heat 50.0 g of ethanol from -20.0°C to 68.0°C?
which compound has lowest soulubility in water?
Consider a case where methyl tertiary butyl ether (MBTE) is to be added to the conventional gasoline. What percentage of MBTE would be required to achieve the 2.7
Calculate the minimum chloride ion concentration needed to initiate precipitation of PbCl2 from a solution that contains 0.01M Pb^2+ (aq).
A sample of drinking water collected from a suburban Boston municipal water system in 2002 contained 0.45 pCi/L of radon. Assume that this level of radioactivity was due to the decay
During the preparation of a solution, a solute is dissolved in a volume of solvent smaller than the desired volume of solution. Subsequently, solvent is added until the final volume of solution is reached
the growth rate drops 6 orders of magnitude and effectively reduces the crystallization rate to zero. Calculate the self-diffusion of this alloy system.
Write and balance the equation for the complete combustion of heptane, C7H16. You do not need to include any phase symbols or energy
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