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What would happen to the Rf values of the pigments if you were to increase the relative concentration of Acetone in the developing solvent.
How much heat is absorbed when 28.3g H2O(s) at 0 degrees celcuis is converted to liquid at 0 degrees celcius
What is the hydronium-ion concentration of a 0.30 M solution of HCN (Ka = 4.9 x 10-10) at 25°C?
Calculate the molality, molarity, and mole fraction of FeCl3 in a 23.6 mass % aqueous solution (d = 1.222 g/mL).
what is the final ph of, a solution of 30ml of .2 m formate titrated with 25 mL of .24M HCL Kb for formate = 5.6*10^-11
Question- Write Lewis structure that obeys the octet rule for OCS and assign formal charges to each atom. Draw the molecule by placing atoms on the grid and connecting them with bonds. Include all lone pairs of electrons. Show the formal charges o..
Problem- Caffeine has the formula C8H10H4O2.If an average cup of coffee contains approximately 125mg of caffiene, how many moles of caffiene are in one cup
Determine the number of hydrogen atoms in an alkyne with one carbon-carbon triple bond and 4 carbon atoms?
Calculate the pH of a solution prepared by adding 20.0 mL of 0.100 M HCl to 80.0 mL of a buffer that is comprised of 0.25 M CH3NH2
The solubility product constant for AgCl at 298 K is 1.82 × 10-10. Calculate E° for the process
A solution of acetic acid is prepared in water by adding 11.1 g of sodium acetate to a volumetric flask and bringing the volume to 1.0 L with water. the final pH is measured to be 5.25. what are the contrations of acetate and acetate acid in solut..
Making this assumption, determine the number of moles of Ca2+ present in the bottled water sample titrated. enter your answer with 3 significant figures
Which of the following set of quantum numbers (ordered n, l, ml, me ) are possible for an electron in an atom
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