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A current of 0.0100 A is passed through a solution of rhodium sulfate, causing reduction of the metal ion to the metal. After 3.00 h, 0.038 g of Rh has been deposited. What is the charge on the rhodium ion, Rhn+? What is the formula for rhodium sulfate
Several artificial nitrogenous bases, called base analogues, can be taken up by cells, converted to nucleotides, and incorporated into nucleic acids. They are often potent mutagens, and some are used in cancer chemotherapy.
The theoretical value can be computed from the atomic weights of the atoms involved. How
To determine the molar mass of an unknown protein, 1.00 mg was dissolved in 1.00 mL of water. At 25.0°C the osmotic pressure of this solution was found to be 1.47 × 10-3 atm.
For the following reaction, label the acid, base, conjugate acid, and conjugate base. Given the following values for Ka, circle the stronger acid and stronger base and predict whether the equilibrium is toward the reactants or products.
What quantity of Cu(NO3)2 is present in 201 mL of a 0.50 M solution?
What is the theoretical yield of hydrazine, in grams, prepared from the reaction of 125.0 mL of 0.500M NH3(aq) with 25.0mL of 1.70M NaOCl (aq)?
What is the pH of the solution when the titration is half way to the end point?
The Ogallala aquifer is the largest in the United States, covering 450,000 across eight states, from South Dakota to Texas. This aquifer provides 82% of the drinking water for the people who live in this region
What is the stoichiometric coefficient for oxygen gas when the following reaction is balanced using the smallest whole number coefficients?C12H26(g) + O2(g) ? CO2(g) + H2O(g)
you have a buffer system made up of equimolar amount of carbonic acid,H2CO3, and sodium bicarbonate,NaHCO3. Write equations to show how this buffer behaves when (a) HCL is added and (b) NaOH is added.
A graduated cylinder contains 110. mL of water. A 10.0 g piece of iron (density = 7.86 g/cm3) and a 18.9 g piece of lead (density = 11.3 g/cm3) are added. What is the new water level in the cylinder?
calculate the molar mass of the acid. B. After 10.00 mL of base had been added during the titration, the pH was found to be 5.87. What is the Ka of the unknown acid
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