QUESTION 46 According to the Nernst equation for dissolved oxygen (DO) probe, DO probe should be re-calibrated when changes in__ occur. chloride concentration pH temperature all of above
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Aarya B.
(a) Determine the chloride ion concentration in each of the following solutions: 0.140 M BaCl2 0.366 M NaCl 1.702 M AlCl3 (b) What is the concentration of a Sr(NO3)2 solution that is 2.25 M in nitrate ion?
Chareen G.
A student wishes to determine the chloride ion concentration in a water sample at 25 °C using a galvanic cell constructed with a graphite electrode and a half-cell of AgCl(s) + e- → Ag(s) + Cl-(aq) E°red = 0.2223 V And a copper electrode with 0.500 M Cu2+ as the second half cell Cu2+(aq) + 2 e- → Cu(s) E°red= 0.337 V The measured cell potential when the water sample was placed into the silver side of the cell was 0.0433 V. Given the standard cell potential for this cell is 0.115 V and the measured cell potential is 0.0433, what is the concentration of chloride ions in the solution?
Madhur L.
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