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A chemist must dilute of M aqueous potassium iodide solution until the concentration falls to M . He'll do this by adding distilled water to the solution until it reaches a certain final volume.
Calculate this final volume, in milliliters. Round your answer to significant digits.
at 520 degrees celius the equlibruim mixture in a three cubic decimeter container consists of 0.2 moles of h2 and 0.2 mole i2 , if the equlibrium contant is o.016, calculate the concentration of hyrdogen iodide at equlibrium HI.
A 320. mL air sample collected at 35°C has a pressure of 550. torr. What pressure will the air exert if it is allowed to expand to 425 mL at 59°C?
Magnesium oxide decomposes into magnesium and oxygen. If 12.09 of magnesium oxide decomposes to form 7.29 of magnesium, what mass of oxygen gas is also released in the reaction?
carbon disulfide can b made by the reaction of carbon dioxide and sulfur trioxide 2so3(g) + Co2(g) + heat >
the particle , electron is in lowest possible enrgy state. what is the probability of finding electron between 0.2 nm to 0.35 nm from one side of the wall.?
what is the energy of the light emitted in joules when an electron falls from the n=4 to the n=2 orbit in the hydrogen atom ? (E2= -328 kJ/mol , E1= -82 kJ/mol)
Calculate the molar enthalpy change when mercury is cooled 10 K. The molar heat capacity of mercury is 27.8 J/K*mol
Estimate the final temperature of the gas if 58g of air at 25 degrees Celsius and 50 bar undergoes a Joule-Thomson throttling to a final pressure of 1 bar. Assume the Joule-Thomson coefficient is independent of temperarture and pressure.
Suppose a sample of solid hydrogen is held under an external pressure of 0.030 atm and heated from 5 to 300 K. What phase change(s), if any, will occur?
The boiling point of an aqueous solution is 101.36 C. What is the freezing point. Imagine two solutions with the same concentration and the same boiling point, but one has benzen as the solvent and the other has carbon tetrachloride as the solvent..
Calculate the volume of a solution NaOH c=0.2 mol/l necessary to neutralize v=200 ml of solution HCl c=0.1 mol/l.
A chemical reaction takes place inside a flask submerged in a water bath. The water bath contains 6.90kg of water at 34.7 degrees C . During the reaction 57.1kJ of heat flows out of the bath and into the flask.
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