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If water has a boiling point of ~100 degrees C, why does it evaporate at room temperature?
Any help on how to do or start this problem? Even partial solutions would help a lot. Nitrogen in a wastewater treatment plant is in the form of ammonia and ammonium ion and has a total concentration
A compound, C5H12O, has an 1H NMR spectrum showing peaks at delta 0.9 (6 H, triplet), 1.5 (4 H, quintet), and 1.9 (1 H, singlet), and 3.4 (1 H, multiplet).Draw this molecule.
When acetic anhydride is dessolved in water it forms acetic acid according to the balanced chemical reaction. Calculate the theoretical yield (in grams of acetic acid, FW 60.05 g/mol) if 8.79mL of acetic anhydride
what happened when caco3 was combined with hydrochloric acid? was a chemical reaction obvious here ? what about naoh
The diluted reference is placed in a cell with a 1.00-cm light path. You then take 35.0 mL of the well water, treat with HNO3 and excess KSCN, and dilute to 100.0 mL. This diluted sample is placed in a variable pathlength cell. The absorbance of t..
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
write symbol for bromine. what is the atomic number of it in periodic table? how many protons and electrons are there
a 5.00g sample of liquid water at 25.0degree c is heated by adding 84.0j of energy. the specific heat of water is
The Ka of HNO2 is 7.1 x 10^-4. Use this to find the volume (mL) and pH of 0.0588 M KOH needed to reach the equivalence point(s) in titrations of 28.5 mL of 0.0380 M HNO2.
Calculate the volume of H2 (in mL) required to hydrogenate 27.2 g of trans-carveol at STP
a solution is made to be 3.8 10-2 m in al3 and .29 m in naf. if the kf for alf63 is 7 1019 how much aluminum ion
Calculate the equilibrium constant, Ka for the acid, HA if, at equilibrium, the pH of a 2.1 M solution of HA is 3.43
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