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Dental amalgam, a solid solution of silver and tin in mercury, is used for filling tooth cavities. Two of the reduction half-reactions that the filling can undergo are
3Hg2 2+(aq) + 4Ag(s) + 6e- ---> 2Ag2Hg3(s) Eo = +0.85 VSn2+(aq) + 3Ag(s) + 2e- -? Ag3Sn(s) Eo = - 0.05V
Suggest a reason why, when you accidently bite on a piece of aluminium foil with a tooth containing a silver filling, you may feel pain. Write a balanced chemical equation to support your suggestion
You can heat it with a charcoal fire. The heat of combustion of graphite (MW = 12 g/mol) is -393 kJ mol-1. How many grams of charcoal will have to burn to supply the heat
A buffer is 0.282 M C6H5COOH (aq) and 0.282 M NA(C6H5COO)(aq). Calculate the pH after the addition of 0.150 moles of nitric acid to 1.0 L of the buffer.
A bottle of 6 M acid has 34.3 mL remaining in it. If the acid is diluted to 770 mL, what is the new concentration of the acid.
What volume, in mL, of a hydrogen phosphate solution that is 85.5% hydrogen phosphate, by mass, contains 0.100 mole of hydrogen phosphate. The density of the solution is 1.70 g/mL.
what is the balanced equation for the neutralization reaction between HI and Ba(OH)2 in aqueous solution
explain the hazards associated with 1.0M CH3COOH solution, 0.10M BaCl2 solution and 0.10M Na2C2O4 solution.
Atom A loses 1 electron and atom B gains 2 electrons. What formula results if these two ions combine to produce a neutral compound
Calculating concentration of an ion, Given the concentration of hydroxide ions, use the ion product constant of water to calculate the concentration of the other ion at 298 K
Calculate the mass of nitrogen dissolved at room temperature in an 83.0 {rm L} home aquarium. Assume a total pressure of 1.0 {rm atm} and a mole fraction for nitrogen of 0.78.
What compounds is used to to change single bonded octane into double bounded high octane
calculate the ph of soultion prepared by adding20.0ml of 0.100m hcl to 80.0ml of a buffer that is comprised pf 0.25 M NH2NH2
What is the chemical equation of an oxalate ion reacting with a permanganate ion and what is the mole ratio
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