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1.) Mn^2+(aq)+S208^2-(aq)+2H20(l)-->MnO2(s)+4H+(aq)+2SO4^2-(aq)
a. Which species is getting reduced?
b. From which species to which does electron transfer occur?
c. Write the balanced molecular equation using K+ and Cl- as the spectator ions.
2. If you were to balance the following equation that occurs in basic solution, how many electrons are being transferred overall?
Zn+NO3---->Zn(OH4^2-+NH3
Calculate kc for the reversible reaction and determine what is the activation energy
The flourocarbon compound C2Cl3F3 has a normal oiling point of 47.6 degrees C. The specific heat of C2Cl3F3(liquid) and C2Cl3F3(gas) are 0.91 J/gK and 0.67J/gK respectively. The heat of vaporization for he compound is 27.49 kJ/mol.
Which components of an acrylamide gel effects qualities of the final product, and which components affect the speed of polymerization?
Calculate the pH of the 0.39M NH3/ 0.73M NH4CL buffer system . B) what is the pH after the addition of 20.0 mL of 0.075M NaOH
Electrophilic Substitution, Which compound is more reactive toward electrophilic substitution (e.g., nitration)? Explain you reasoning.
The gas remaining in the first container shows a pressure of 1.710 atm. Calculate the volume of the spherical container.
The bromocresolgreen end point of the titration was reached after the addition of 30.00mL of hydrochloric acid solution. Calculate the concentration of the acid solution
What is the pH of a solution made by mixing 30.00 mL of 0.10 M acetic acid with 30.00 mL of 0.10 M KOH? Assume that the volumes of the solutions are additive. Ka = 1.8 × 10-5 for CH3CO2H.
Concentrated hydrochloric acid is 38% HCl by weight and has a density of 1.19 g/mL. A solution is prepared by measuring 25 mL of the concentrated HCl,
How many moles of bromine trifluoride are needed to react completely with 9.68 moles of titanium (IV) oxide?
suppose that 2.00L of solution are made from 150. mg of citric acid, C6H8O7, A. what is the molar mass of citric acid? B. what is the molarity of citric acid in the solution?
A 486 mL sample of water was cooled from 50.0°C to 10.0°C. Assuming a specific heat of 4.184 J/K g and a density of 1.00 g/mL, find the amount of heat transferred from the water to the surroundings.
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