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A solution containing copper (I), nickel, and Zinc cyanide complexes was eloctrolyzed, and a deposit of 0.175 grams was obtained. the deposit contained 72.8% Cu, 4.30% Ni, and 22.9% ZN. no other element or compound was released.
Calculate the number of coulombs passed through the solution.
1.which of the following is an l-aldotetrose?2. which of the following is a d-aldotetrose?3. which structure is
What are the respective concentrations (M) of Na and SO4 ions formed by dissolving 0.600 mol Na2SO4 in 135 mL water?
What would happen if you dropped the object into the beaker while using the Archimedes' Principle method instead of submerging the object
What is the importance of the pI (isoelectric point) of an amino acid, when considering ion exchange chromatography
a sample of calcium nitrate cano32 with a formula weight of 164 gmol has 5.00 x 1025 atoms of oxygen. how many
Two solution are mixed, Zn(NO3)2 and Na2CO3. If at the instant of mixing the [Zn(NO3)2]=3.7x10^-5M and [Na2co3]=1.5x10^-6M will a precipitate form?
535 g piece of copper tubing is heated to 91.5degc and placed in an insulated vessel containing 58.5 g of water at
At constant external pressure (1.2atm), the temperature of 3.25 mol of ideal gas increased from 250K to 305K. Calculate the internal energy change ΔE.
Calculate the concentrations of all species in a 0.750 M Na2SO3 (sodium sulfite) solution. The ionization constants for sulfurous acid are Ka1 = 1.4× 10-2 and Ka2 = 6.3× 10-8.
the molality of a solution is the number of moles of the solute that is dissolved in 1000 g of solvent. using the
A volume of 25.0 mL of 0.100 M HCO2H(aq) is titrated with 0.100 M NaOH(aq). What is the pH after the addition of 12.5 mL of NaOH? (Ka for HCO2H = 1.8 × 10-4)
Calculate the % atom economy for the following two methods for converting benzene, C6H6, to aniline, C6H5NH2
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