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A solution consisting of isobutyl bromide and isobutyl choloride isfound to have a refractive index of 1.3931 at 20oC. The refractive indices at 20o C of isobutyl bromideand isobutyl choloride are 1.4368 and 1.3785 respectively.Determine the molar composition (in percent) of the mixture byassuming a linear relationship between the refractive index and themolar composition of the mixture.
A sample of sodium hydrogen carbonate solid weighing 0.1075 g requires 49.35 mL of a hydrochloric acid solution to react completely.
When 28.0 ml of 0.500 M H2SO4 is added to 28.0 ml of 1.00 M KOH in a coffee-cup calorimeter at 23.50 degrees Celsius, the temperature rises to 30.17 degrees Celsius. Calculate the delta H of this reaction.
Which of the following molecules is polar?
how many moles of nitrogen gas will be formed upon the complete reaction of 31.6 grams of nitrogen monoxide with excess hydrogen gas?
A fire occurred in a storage room where a steel cylinder of oxygen-enriched air was kept. The pressure of the gas in the cylinder was 300 atm at 20 C.
A gas evolved during the fermentation of sugar was collected at 22.5 c and 702 mmhg. After purification it's volume was found to be 25.0 l . How many moles of gas were collected.
For a particular reaction, deltaH is -93.8kJ and deltaS is -156.1 J/K. Assuming these values change very little with temperature, over what temperature range is the reaction spontaneous in the forward direction?
What IR stretches (and ranges) will occur in? What IR stretches (and ranges) will occur in an aldehyde, but not an alcohol or ketone and IR stretches (and ranges)
In an ethanol-chloroform solution in which the mole fraction of ethanol is 0.20, the total vapor pressure is 304.2 torr, and the mole fraction of ethanol in the vapor is 0.138. Calculate the activity coefficients of the ethanol and the chloroform.
If I add 1.65 L of water to 112 grams of sodium acetate what is the molality of NaC2H3O2 in this solution?
Disregarding any other losses and treating the animal as a closed system, what was the change in internal energy of the animal?
Calculate the entropy change when 100 g of argon is heated and compressed from 300 K, 1.0 atm, to 900 K, 17 atm
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