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A hard water sample contains 0.0085% Ca by mass (in the form of Ca2+ ions). What mass of water contains 1.2 g of Ca?
The acid ionization constant of Fe(H2O)62+(aq) is 3E-6. Compute the pH of a 0.2 M aqueous solution of Fe(NO3)2. 5. Compute the solubility of Mg(OH)2 in a buffer solution at pH=10.31. The solubility product of magnesium hydroxide is 1.2E-11
Compute mole fraction of caffeine(C 8 H 10 N 4 O 2 ), the molarity of the solution
The rate of reaction is 1.6 X 10-8 mol/L.min when the nitrogen oxide concentration is 0.020 M and the bromine concentration is 0.030 M. What is the value of K
Assume that 100.0 mL of 0.200 M of CsOH and 50.0 mL of 0.400 M HCl are mixed in a calorimeter. The solutions start out at 22.50 degrees celcius, and the final temperature after reaction is 24.28 degrees celcius.
What hybridization would you expect for the indicated (bold) atom in each of the following molecules?
At pH 6.00 and pE 2.10, what is the concentration of Fe2+ (mol/L) in equilibrium with Fe(OH)3?
if 29.7mL of a .205 M KOH solution is required to completely neutralize 25.0mL of a solution of CH3COOH, what is the molarity of the acetic acid solution? CH3COOH(aq)+KOH(aq)>KCH3COO(aq)+H2O(l)
This standard reaction will only be spontaneous at high temperatures (T > 550 K) This standard reaction will only be spontaneous at low temperatures (T
Determine the theoretical and percent yields of ethanol if 684g sucrose undergoes fermentation and 349g ethanol is obtained?
Write and balance the equation for the reduction of iodate by hydrogen sulfite ions to give iodide and sulfate in basic
In my organic chemistry class we were asked a question to use this theory to account for bond lengths between ethane, ethene, and ethyne. I was wondering what this theory actually was about.
5.00 ml of a water sample was titrated for hardness with 4.15mL of 0.0200M EDTA. Write an equation for the reaction and calculate the hardness of the water in ppm
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