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How much heat (in kJ) is required to warm 12.0 g of ice, initially at -13.0 degree celcious, to steam at 114.0 degree celcious? The heat capacity of ice is 2.09 J/g * degree celcious and that of steam is 2.01 J/g * degree celcious.
Under the same conditions of temperature and pressure, it takes an equal volume of N2 12.00 min to effuse through the barrier. Calculate the molar mass of the gas and suggest what gas it might be
You place ethanol of 100 grams and water of 100 grams in a refrigerator. both are at room temperature Initially,. Determine which of the two liquid samples will cool faster and also explain why this happens.
Electrons are ejected from sodium metal by any light that has a wavelength shorter than 544 nm. What is the kinetic energy of an electron
Use stereoformulas to show that (S)-benzoin reduces to meso-hydrobenzoin.
what mass of magnesium in reaction with an excess of hydrochloric acid is needed to produce 128 ml of hydrogen h2 gas?
The HCl molecule is quite well described by the morse potential with hcDe=5.33 ev. v=2989.7 and xv+52.05 . Assuming that the potential is unchanged on deuteration , predict the dissociation energy of HCl and DCl
What is the molecular formula of each compound. (Type your answer using the format C6H12O6 for C6H12O6 and use the same order of the elements as in the empirical formulas.
what is the correct expression for computing the volume of gas at STP and determine What is the mass percent yield from 1.79 g of Sb in excess S, is obtained if 1.14 g of Sb 2 S 3 ?
ethylene oxide polyol that has been generated from pentaerythritol with hexamethylene di-isocyanate, where the ratio of hydroxyl groups to isocyanate groups
(a) What is the rate of the reaction if the concentration of CH3Br is doubled? (b) What is the rate of the reaction if the concentration of NaOH is halved? (c) What is the rate of the reaction if the concentrations of CH3Br and NaOH are both incre..
Lewis Dot structure and identify molecule shape, the hybridization on the central atom, and whether the molecule is polar or non
Which of the following enzymes is used in both glycolysis and gluconeogenesis? A. hexokinase B. pyruvate carboxylase C. malate dehydrogenase D. triose phosphate isomerase E. isocitrate dehydrogenase
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