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Problem- A cell consists of a gold wire and a saturated calomel electrode (S.C.E.) in a 0.140 M AuNO3 solution at 25 °C. The gold wire is connected to the positive end of a potentiometer, and the S.C.E. is connected to the negative end of the potentiometer.
What is the half-reaction for the Au electrode?
Ignoring activities, if the standard reduction potential for the above reaction is E0 = 1.69 V, what is potential of the gold electrode? (in V)
The reduction potential for the saturated calomel electrode is E = 0.241 V. What is the cell voltage? (in V)
I need help for above question. Show each steps for the above problem.
A sample of air contains 11.4 µg/m^3 of beryllium dust. How many atoms of beryllium are present in a room with dimensions of 19.1 feet by 12 feet by 13.3 feet? Answer in units of atoms.
a 0.8612 g sample of a mixture consisting of nabr nai and nano3 was analyzed by adding agno3 to precipitate the br
flask a 25 ml 8 oh- ions and 4 ca 2 ionsflask b 25 ml 6 h ions and 6 cl- ionsa if each sphere represents 1.0 x 10-3 mol
He decided to dry the alum by heating it strongly. Unfortunately he also drove off the waters of hydration. What is the mass of his remaining anhydrous salt?
Think back to what you learned in this course about solutions and intermolecular forces. Why don't these to "mix" together (in other words, make a homogenous solution) when combined. Why do they separate into layers
What volume of ethanol must be diluted with water to prepare 308 mL of 0.700 M solution?The density of ethanol is given as 0.789 g/mL.
These 3 solutions including 2.362 g of Rb2S, 1.635 g of NaClO 4 , and 0.796 g of CuCl 2 , respectively are combined together? now calculate what would be the mass of this precipitae?
The half-life for the radioactive decay of is 5730 years. How long will it take for 20% of the atoms in a sample of to decay. If a sample of initially contains 1.1 of , how many millimoles will be left after 2285 years
When 36.5 mL of 0.585 M H2SO4 is added to 36.5 mL of 1.17 M KOH in a coffee-cup calorimeter at 23.50°C, the temperature rises to 30.17°C. Calculate pH of this reaction.
Calculate the ratio of the hydronium ion in acid rain to that in normal rain.
Determine the ionic strength. Assume that all the salts completely dissolve and dissociates into their respective ions
The net charge of a polypeptide at a particular pH can be determined by considering the pK value for each ionizable group in the protein
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