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A 4.00 solution of was prepared using 1.00 of water at 25.0 . Once the solid had all dissolved, the temperature of the solution was 12.3 . Calculate the heat of solution, , of . Assume that the specific heat of the solution is identical to that of water, 4.18.
What would be the effect of increasing the temperature on the following reaction? C2H2(g) + H2O(g) CH3CHO(g) DHrxn = -15 1 kJ 1. [CH3CHO] would increase
The vapor pressure of water at 30.0 degree celsius is 31.82mmHg. A portion of mannitol (C6H14O6, non-volatile) is added to make a 3.50M solution. The solution has a density of 1.048 g/mL. What is the new vapor pressure of the solution
account for each of the following properties of solids: the definite volume, the relatively high density of solids, the extremely low rate of diffusion.
If 5.50 of the unknown compound contained 0.183 of and 0.367 of , how many moles of oxygen, , were in the sample.
In the decomposition of hydrogen peroxide, the percentage yield of oxygen is 93%. What is the actual yield in grams of oxygen if you start with 100 grams of H2O2.
Write the simplest balanced equations, and find the actual relative masses of the elements. Explain your reasoning.
Assume that air pressure is 1.00 atm and the air temperature is 17.3 C. If the abolute zero apparatus is open to the air, how many moles of air will it hold?
Naturally occuring iodine is iodine-127. medically, radioactive isotopes of iodine-125 and iodine-130 are used. a)write the atomic symbol for each isotope. b)in what ways are the isotopes similar, and in what ways do they differ
A gas occupying a volume of 725mL at a pressure of 0.970 atm is allowed to expand at a constant temperature until its pressure reaches 0.541 atm. What is its final volume
the data below were collected for the following reactioninitial rate0.050 0.050 0.0140.100 0.050 0.0290.100 0.100
Write a balance equations for both half-reactions for the redox. combine them to determine the overall balanced
cunaturally occurring consists of 2 isotopes 63cu and 65cu and has a relative atomic mass ar of 63.55 considering this
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