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A 368-g sample of water absorbs infrared radiation at 1.06x10(4 ) nm from a carbon dioxide laser. Assume all the absorbed radiation is converted to heat. Compute the number of photons at this wavelength required to increase the temperature of water by 5.00 degrees C.
The concentration of Fe2+ in a sample of water is 350 mmol/L At what pH will 99% of the Fe2+ be precipitated as Fe(OH)2? Ksp = 7.9 x 10-15
Ranked the free energy changes for hydrolysis of these phosphorylated compounds from the most negative (on the left) to the most positive (on the right)
Describe the preparation of 1.5L of a 0.10M Ca(C2H3O2)2 solution. How many milliliters of the above solution would be needed to prepare 500mL of a 0.025M solution
Would using sulfuric acid instead of hydrochloric acid with zinc metal change the outcome of the reaction
The element gallium has two naturally occurring isotopes with masses of 68.9300 amu and 70.9200 amu. What would be the fractional abundance of the first isotope, if the atomic weight was 69.6518 amu
a glucose solution contains 56.0 rm g of glucose rmc6 rmh12 rmo6 in 440 rm g of water. compute the freezing point and
If a sample of 0.230 grams of KCN is treated with an excess of HCL, calculate the amount of HCN formed, in grams.
A reaction has a rate constant of 7.69 M^-1s^-1 at 219 K and a rate constant of 3.36 *10^4 M^-1s^-1 at 344K. what is the activation energy for this reaction
Find N-H bond energy in ammonia using the standard enthalpies of formation N(g)=472,7kJ/mol, H(g)=216.0kJ/mol, NH3(g)=-46.1kJ/mol
How many grams of carbon dioxide (CO2) can form when a mixture of 4.95 g of ethylene (C2H4) and 3.25 g of oxygen is ignited. Assume complete combustion to CO2 and H2O.
Ethylene glycol, HOCH2CH2OH, is used as antifreeze. It is produced from ethylene oxide, C2H4O, by the following reaction. C2H4O(g) + H2O(l) ? HOCH2CH2OH(l)
What bond angles do you expect for each of the following, and what kind of hybridization do you expect for the central at atom in each?
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