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Discuss how long (in minutes) must 0.600 amps of current be applied to a gold solution (Au3+) to cause the formation of the 0.640grams of gold metal?
Calculate the maximum [Ba+2] that can be maintained in the 1.700L of a0.040 M solution of Na2SO4? First calculate the expression for the solubility product of the BaSO4 where the Ksp for the BaSO4
Assume that a 1.000 g sample of an antiseptic preparation is treated with the 25.00 mL of 0.02964 M AgNO3 and then excess the Ag+ is titrated with the 3.82 mL of 0.05527 M KSCN to a red FeSC
Illustrate a three-dimensional representation of one enantiomer of the chiral diastereomer of the product using the dashes and wedges to indicate the stereochemistry. Label all chirality center as (
Given that NaOH exists as Na+ and OH- ions in solution, write down the equation for the reaction that occurs when the NaOH is dissolved in water.
What is the molarity of the dye in a solution with an absorbance of 0.118 at 560nm when a student measures k for a certain blue dye to be 24.16M-1 at 560nm?
Graphite and diamond are two allotropic modifications of carbon. Graphite conducts electricity while diamond does not. Why is that? Does it have to do with diamonds having a crystal lattice, and gr
Would the reported mole ratio of oxygen to magnesium be too high, too low, or unaffected by this procedure? Explain. Suppose that the magnesium is not polished.
A sample which is having 50.0 ml of a 1.00 M solution of CuSO4 is mixed with the 50.0 ml of 2.00 M KOH in a calorimeter. The temperature of both solutions was 26.3C after mixing and 20.2 C before mi
Describe the ionic strength and the activity coefficient of a solution that is 0.04M FeSO4, (Hint might require to use the Debye-Huckel equation)
Assume that a steel of euctoid composition is cooled to 675 degrees Celsius from the 760 degrees Celsius in less than the 0.5 s and held at this temperature.
Describe the molarity of a solution prepared by mixing the 300 mL of a 0.250 M solution of a sulphuric acid with the 700 mL of a 6.00 M solution of sulphuric acid?
Discuss how much energy can be released from converting one neutron from the mass to energy? Where the mass of one neutron is 1.01 amu, and the 1.00 g = 6.02 x 10e23 amu.
Assume that 25.00 mL of 0.100 molar N are titrated with 0.100 molar X and that the pH of the solution is maintained at the1.00 throughout the course of the titration.
The temperature increases from 297.65 K to 305.04 K. Determine the amount of heat released from the reaction. A sample which is having 2.16 g of caffeine (C8H10N4O2) burns in a constant-volume calor
Calculate the pH and OH- ion molar concentrations when the molar concentration of concentrated hydrochloric acid is12.1M.
Assuming that a sugar-coated cereal contains 23.0% sugar and no other energy source, what mass of cereal will provide enough energy to walk the 2.0 km?
If the pressure of the helium is 44.0 torr, and the nitrogen 615 torr, determine the pressure of the oxygen in the tank? A diver's scuba tank contains a mixture of nitrogen, oxygen and helium at a
A sample containing potassium chloride and inert material was analyzed by the Mohr method. A portion of the solid weighing 0.2500g was dissolved and titrated with the 0.07575 M AgNO3 solution to a b
If this sample is titrated with acid, it is found that 20.10 mL of0.5010 M HCl are required to reach the endpoint. A sample of mixed carbonates, SrCO3 (147.63 g/mol) and Li2CO3 (73.89 g/mo
Discuss what would be the final concentration of hydroxide ion if the 50.0 ml of 0.15 m Ca (OH)2 solution is mixed with the 25.0 ml of 0.30 m HBr solution?
How is the heat of dissolution of the salt NH4Cl(s) related to the hydration energy of NH4+(g) plus X- (g) and the lattice energy of NH4Cl(s)? Illustrate a Born-Haber cycle and then summarize it
The solution gives an absorbance of 0.102 at 227 nm using a 1.0 cm cell. A 0.00062 g sample of benzene (C6H6) is dissolved in 200.0 mL of water.
Determine the concentration of ammonia NH3, which is necessary to initiate the precipitation of Zn(OH)2 from the 3.2x10^-3 M ZnSO4.
A 43.2-mL sample of 0.236M sodium hydroxide solution reacts totally with the 36.7mL of sulphuric acid solution. Determine the molarity of the H2SO4 solution?