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1- Copper (II) oxalate (CuC2O4) is a sparingly soluble salt with Ksp=4.43×10-10. Cupric ions (Cu2+) form a complex with excess oxalate ions in solution according to the following equation:
Cu2+(aq)+2C2O2-4(aq)?[Cu(C2O4)2]2-(aq)
The Kf for this reaction is 1.7×1010. What is the molar solubility of CuC2O4 in a 0.10 M Na2C2O4 solution?
2- A solution is prepared that is 0.500 M cyanoacetic acid ( HC3H2NO2) and 0.500 M in sodium cyanoacetate (NaC3H2NO2). What is the final pH of the solution after 0.300 moles of NaOH are added? The (Ka) of cyanoacetic acid is (3.39×10-3). Assume the change in volume is negligible.
Question- Completes the following reaction sequence by drawing in the neutral reagents and products where necessary. The product of this reaction has a molecular formula of C7H6O7 and has a H NMR spectrum (CDCL3) OF ~12.1 (s), 8.1 (m), and 7.6-7.4..
Solution prepared adding 50 mL HCl and 20 mL HNO3 to 300 mL water. More water added until final volume is 1.00 L. Calculate [H+], [OH-], and pH for solution.
A saturated solution of MX3 (of MW 160g/mol) contains 0.0245 grams per liter. Explain what is the solubility product constant of MX3
If the total volume of the jewelry is the sum of the volumes of the gold and silver that it contains, calculate the percentage of gold (by mass) in the jewelry.
Important information about PH calculations, Calculate the pH of the solution formed during a titration upon adding 35.0 ml of a standard .150M NaOH solution to
The first-order decomposition of S2O6(g) to form SO3(g), has a half-life of 1.262 x 10-3 s at 45oC. How long will it take for 60% of a 0.34 M sample to decompose at 45oC
Calculate the pH during the titration of 32 mL of 1.149 x 10-1 M NaOH with 1.161 x 10-1 M HBr solution after the following additions of acid.
The proper concentration for an intravenous NaCl solution is .90g NaCl per 100 mL of water(sometimes referred to as .90% m/v) If the van't Hoff factor of NaCl is i=1.8, what is the osmotic pressure of blood at body temperature, 37 degree C ? =_____at..
the mass of an average blueberry is 0.78 g and the mass of an automobile is 2100 kg. find the number of automobiles
The ionization constants for sulfurous acid are Ka1 = 1.4*10^-2 and Ka2 = 6.3 * 10^-8. Species that need to be calculated (Molarity):
If the same amount of sebacoyl chloride, 1,6-hexanediamine and sodium hydroxide were combined , but the solvent was used to afford a homogenous reaction mixture
The reaction of aluminum with hydrocholoric acid can be shown as follows : 2AI(s) + 6 HCI(aq) --> 2AICI3(aq) + 3H2(g). How many mole of aluminum are needed to react with 1.16 mol of hyrocholoric acid
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