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Enthanol C2H5OH melts at -114 degrees Celsius. The enthaply of fusion is 5.02 kl/mol. The specific heat of solid as well as liguid ethanol is 0.9701 J/gK and 2.30 J/gK, respectively. Explain how much heat (in kj) is needed to convert 25.0 g of solid ethanol at -135 degrees Celsius to liquid ethanol at 25.0 degree Celsius?
the vanadium in an ore sample is converted to vo2. the vo2 ions produced from the sample are then titrated with mno4-
How many kJ of heat are needed to raise the temperature of 2kg of water from 29 degrees C
What is the ratio of the conjugate base concentration to the acid concentration, that is, [B- ]/[HB] when the indicator switches to the acidic color
the electron in the n 5 level of a hydrogen atom emits a photon with a wavelength of 1280 nm. to what energy level
How to do I calculate the pH of original buffer given mass of NaC2H3O2*H2O (FW =136 g/mol) = 3.507 gafter measuring out 8.8 mL of 3.0 M acetic acid to add to the beaker containing the sodium acetate. Then put in 55.6 mL of distilled water with the..
Calculate the pH for each of the following cases in the titration of 50.0 mL of 0.110 M HClO(aq) with 0.110 M KOH(aq).
The determination illustrates the sample to be 84.0% zinc. Explain what amount of hydrogen measured at STP was obtained
Find the molarity of the carbonate in the solution. A solution is prepared by dissolving 11.60g of a mixture of sodium carbonate and sodium bicarbonate in 1.00 L of water. A 300.0-cm^3 sample of the solution is then treated with excess HNO3 and boi..
an ordinary 3.0 v flashlight bulb draws roughly 0.25 a of current and converts about 1.0 of the electrical power into
A radiometric dating technique uses the decay of U-238 to Pb-206 (the half-life for this process is 4.5 billion years) to determine the age of the oldest rocks on Earth and by implication the age of Earth itself The oldest uranium-containing rocks..
what speed would this quasar seem to be receding from us? Give your answer in km/s and as a fraction of the speed of light.
Draw the Lewis structure of benzoic acid a (refer to p.40 in you lab manual). ii). list all the IMF that exist between two molecules of benzoic acid.
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