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Compute the concentration of oxalate ion (C2O4) in a 0.175 M solution of oxalic acid (C2H2O4). For oxalic acid, Ka1 =6.5*10-2 and Ka2 = 6.1 * 10-5
By titration it is found that 43.1mL of 0.169 M NaOH(aq) is needed to neutralize 25.0mL of HCl(aq). Compute the concentration of the HCl solution.
What is the balanced reaction that occurs when copper metal dissolves in nitric acid
A solution containing 10g of a non-ionic compound in 90g water has a freezing point of -3.33 degrees C. Given that Kf = 1.86 degrees C/m for water
write the total ionic and net ionic equations for the reaction of aqueous silver nitrate with a calcium chloride
The concentration of ascorbic acid (vitamin C) in a new beverage is to be determined using a new electrochemical sensor. A 20.00 mL sample of the beverage gave a reading of 2.05 µA.
What are some reasons why there would be a difference between the expected and actual values for the moles of copper oxide produced from heating copper in the air.
Ethanol melts at -114 celcius and boils at 78 celcius . The enthalpy of fusion of ethanol is 5.02 KJ/mol , and its enthalpy of vaporization is 38.56 KJ/mol.
compute the molar mass of vitamin c if a solution of 22.7 g in 100. g of water freezes at -2.40 oc. the kf of water is
a 1.0 liter container initially holds 0.0150 mol H2 and 0.020 mole I2 at 721K . What are the concentrations of , H2,I2 and HI after system has achieved a state og equilibrium? The value Keq is 50.5 for the reaction H2+I2↔ 2HI
The volume of an average stomach is about 1.0L. Suppose that a particular condition of acid indigestion is equivalent to the presence of a 0.50% HCl (by mass) solution.
1. what is the concentration of hydroxide ion in a solution whose concentration of hydro-gen ion is 1.25 times10-5 m?2.
At 10 degrees, Kc = 56.3 for the reaction below. H2 + Cl2 --> HCl
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