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Under standard-state conditions at 25°C, what spontaneous reaction will occur in aqueous solution among the ions Sn4+, Sn2+, Co3+, and Co2+ ? What will be the E°cell for this reaction? A. Sn2+(aq) + 2 Co3+(aq) ? Sn4+(aq) + 2 Co2+(aq) E°cell = + 1.95 V B. Sn2+(aq) + 2 Co3+(aq) ? Sn4+(aq) + 2 Co2+(aq) E°cell = + 1.69 V C. Sn4+(aq) + 2 Co2+(aq) ? Sn2+(aq) + 2 Co3+(aq) E°cell = + 1.95 V D. Sn4+(aq) + 2 Co2+(aq) ? Sn2+(aq) + 2 Co3+(aq) E°cell = + 1.69 V E. Sn2+(aq) + Co2+(aq) ? Sn4+(aq) + Co(s) E°cell = + 0.41 V
A flask contains 0.180 mol of liquid bromine, Br_2. Determine the number of bromine molecules present in the flask.
Ethylene gycol has a density of 1.11g/mL. What is the volume of 30.0 g of ethylene glycol?
The moles of salicylic acid is 0.00724mol. The molar mass is 138.12 salicylic acid . Given 1.00 g of salicylic acid . Please show work? m=mol of solute X particles per formation/ mass of solvent, kg
A 24.9 mL volume of HCl reacts completely with 55.0 mL of aqueous Na2CO3. The reaction is as follows: 2HCl (aq)+ Na2CO3(aq) ->CO2(g)+H2O(l)+2NaCl(aq) The volume of CO2 formed is 141 mL at 27°C and 742 mmHg.
How many grams of oxygen are needed to react completely with 1290 grams of pentanone (C5H10O)?
Calculate the vapor pressure of a solution made by dissolving 109 grams of glucose
an automobile gasoline tank holds 21 kg of gasoline. When gasoline burs, 81 kg of oxygen is consumed and carbon dioxide and water are produced. What is the total combined mass of carbon dioxide and water that is produced?
How many resonance structures are there for the cyclohepatrienyl cation? Draw them. Are carbon-carbon bonds equivalent?
How many milliliters of a 0.20 M glucose C6H12O6 solution are needed to provide a total of 25.0 g of glucose?
Acetylene gas (C2H2) is produced as a result of the following reaction. CaC2(s)+2H2O(l) = C2H2(g)+Ca(OH)2(aq) . If 32.0 g of CaC2 are consumed in this reaction, how many moles of H2O are needed?
Calculate the pH of this solution? if we want to lower the pH by one unit of this solution then How many mL of 0.1 M H 3 PO 4 should be added to this solution?
The mass of a cube of gold with one side measuring 150. cm is ______ kg. The density of gold is 19.32 g/cm3
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