25,963 Answered Questions for the topic chemistry
Chemistry
11/17/23
Write a balanced net ionic equation for the redox reaction of Ag2S and Al metal that produces Ag metal and Al(OH)3.
Write a balanced net ionic equation for the redox reaction of Ag2S and Al metal that produces Ag metal and Al(OH)3. Low concentrations of hydrogen sulfide in air react with silver to form Ag2S,...
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Chemistry
11/17/23
Write the two half-reactions for the battery. Please include all states of matter.
In recent years engineers have been working on an aluminum-air battery as an alternative energy source for electric vehicles. The battery consists of an aluminum anode, which is oxidized to solid...
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Chemistry
11/17/23
write balanced chemical equations for the cathode and anode half-reactions and the overall cell reaction. Include the phases of all species in the chemical equation.
Sometimes the cell reaction of nickel-cadmium batteries is written with Cd metal as the anode and solid NiO2 as the cathode. Assuming that the products of the electrode reactions are solid...
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Chemistry
11/17/23
Write the reaction equations of a voltaic cell with Ag+ & Sn2+
A voltaic cell is based on the reduction of Ag+(aq) to Ag(s) and the oxidation of Sn(s) to Sn2+(aq).A. Half Reaction of Cells AnodeB. Half Reaction of Cells CathodeC. Write a balanced cell...
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Chemistry
11/17/23
Calculate E from the following Redox reaction
Redox Reaction: 2MnO4-(aq) + 2H2O (l) + 6H+ (aq) --> 2Mn2+ (aq) + 5H2O2 (l)The standard reduction potentials for the species in the reaction are listed below:H2O2 (l) + 2H+ (aq) + 2e- -->...
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Chemistry
11/17/23
If a piece of silver is placed in a solution in which [Ag+] = [Fe2+] = 1.00 M at STP, what is Ecell for the following reaction?
2Ag(s) + Fe2+ (aq) --> 2Ag+(aq) + Fe(s)The standard reduction potentials for the species in the reaction above are listed below:Ag+(aq) + e- --> Ag(s) E(red) = .7996 VFe2+ (aq) + 2e-...
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Chemistry
11/17/23
Write half-reactions for the anode and cathode and then write a balanced cell reaction. Please include the states of matter in the equations.
A voltaic cell with an aqueous electrolyte is based on the reaction between Cd2+(aq) and Mg(s), producing Cd(s) and Mg2+(aq). Write half-reactions for the anode and cathode and then write a...
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Chemistry
11/17/23
Pieces of cadmium and tin are placed in a solution in which [Cd2+] = [Sn2+] = 1.00 M. What is Ecell?
The standard reduction potentials for the species in the reaction are shown below:Sn2+(aq) + 2e- --> Sn(s) E (red) = -.136VCd2+(aq) + 2e- --> Cd(s) E (red) = -0.403
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Chemistry
11/17/23
For the electrochemical cell 2 Al(s) + 3 Mn²⁺(aq) ⟶ 2 Al³⁺(aq) + 3 Mn(s) (E° = 0.48 V, [Al³⁺] = 1.0 M), what is the value of E when [ Mn²⁺] = 0.022 M? Assume T is 298 K
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Chemistry
11/16/23
A student mixes 20mL of 0.19M Ca(NO3)2 and 12 mL of 0.15M Na2CO3. What is the theoretical yield of CaCO3?
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Chemistry
11/16/23
A voltaic cell using Cu²⁺/Cu and Al³⁺/Al half-cells is set up at standard conditions
and each compartment has a volume of 225 mL. What is the [Al³⁺] after the cell has delivered 0.120 A for 64.0 hours at 25.0 °C? (E° for Cu²⁺/Cu = 0.340 V and E° for Al³⁺/Al = -1.660 V.)
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Chemistry
11/16/23
The cathode compartment of a copper concentration cell
contains 0.500 L of 1.00 M [Cu²⁺] solution while the anode compartment contains 0.825 L of 0.0500 M [Cu²⁺] with a copper electrode in each compartment. How many Coulombs of electric charge can the...
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Chemistry
11/16/23
Write the net ionic equation for the cell reaction:
PbO2(s) + HSO4-(aq) + 3H++ 2e- --> PbSO4(s) + 2H2O (l) PbSO4(s) + H+ (aq) + 2e- ---> Pb(s) + HSO4-(aq)
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Chemistry
11/16/23
Complete and balance the following redox reaction in acidic solution
TeO3^-2 (aq) +N2O4(g)-> Te(s) + NO3^- (aq)
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Chemistry
11/15/23
how many liters of o2 gas at STP are requires to produce 134.5g of c3h6ofrom excess c6h6 and c3h6 according to the reaction C₆H₆(l) + C₃H₆(g) + O₂(g) → C₆H₆O(s) + C₃H₆O(l)
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Chemistry
11/15/23
Solving moles-to-moles limiting reactant problems
Solid phosphorus (P) and chlorine (Cl2) gas react to form solid phosphorus pentachloride (PCl5). Suppose you have 2.0 mol of P and 1.0 mol of Cl2 in a reactor.Suppose as much as possible of the P...
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Resistor and Capacitor Arrangements
Three capacitors are connected as shown in the figure. What is the equivalent capacitance between points A and B? Please explain the steps leading to your answer.If you were to swap all capacitors...
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Chemistry
11/14/23
Balance the redox reaction by inserting the appropriate coefficients
Balance the redox reaction by inserting the appropriate coefficientsredox reaction: H2O+Se+Cd2+--->Cd+SeO32-+H+
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