Find molarity of solution NaCl given ion concentration
A 0.500 g sample of AgCl was mixed with 250 mL sodium chloride solution of unknown molarity. In order to find the molarity of sodium chloride the amount of dissolved silver ion was monitored with an ion selective electrode at 25 C. The electrode registered the concentration of Ag+ ion to be 3.75x10^-8 M. Calculate the concentration of molarity of the NaCl.
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Determining the amount of sulfate ion (SO2) dissolved in seawater in the unit of molarity QUESTION...
Determining the amount of sulfate ion (SO2) dissolved in seawater in the unit of molarity QUESTION Sulfate concentration in the seawater is about 28 mm (0.028 M). Take the reverse approach to the calculation procedure in the previous Question #1 (so called a backward calculation) and find a rough estimate for the volume of the seawater sample you may need to take from the beach like the one below. A 20.0 mL sample solution contains unknown amount of bromide ion...
2. Determine the molarity of the unknown NaCl solution. Show all work. 3. Determine the mass...
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A student wishes to determine the chloride ion concentration in a water sample at 25 °C...
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) + CI+ (aq) Eºred = 0.2223 V And a copper electrode with 0.500 M Cut as the second half cell Cu2+ (aq) + 2 e → Cu(s) Eºred= 0.337 V The measured cell potential when the water sample was placed into the silver side of the...
(5 marks) A solution containing chloride ion was analyzed by the mL sample containing chloride ion...
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What is the molarity of a solution which contains 32.6 g of sodium chloride (NaCl) dissolved...
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A student wishes to determine the chloride ion concentration in a water sample at 25 °C...
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...
Question A 20.0 mL sample solution contains unknown amount of bromide ion (Br). To this solution...
Question
A 20.0 mL sample solution contains unknown amount of bromide ion (Br). To this solution was added the solution that contains plenty of AgNO3. AgBr precipitates were formed. The precipitate were filtered and measured to be is 0.6964 g. What is the molarity of bromide ion in the original sample solution? The molar mass of Br = 80.0 g; the molar mass of AgBr = 188 g. (Solution) AgNO, is soluble and thus exists Ag+ ion and NO3-ion. Ag+...
3. Determine the mass of NaCl dissolved in the unknown NaCl solution. Show your work. Volume...
3. Determine the mass of NaCl dissolved in the unknown NaCl solution. Show your work. Volume of unknown solution, ml [Ag+], M Mass of AgCl(s), g 56.685 ml .00176997 200.648
QUESTION 1 A 20.0 mL sample solution contains unknown amount of bromide ion (Br). To this...
QUESTION 1 A 20.0 mL sample solution contains unknown amount of bromide ion (Br). To this solution was added the solution that contains plenty of AgNO3. AgBr precipitates were formed. The precipitate were filtered and measured to be is 0.6964 g. What is the molarity of bromide ion in the original sample solution? The molar mass of Br = 80.0 g; the molar mass of AgBr = 188 g. (Solution) AgNO, is soluble and thus exists Ag+ ion and NO3-ion....
QUESTION 3 Answer ALL parts. [Marks: (a) 50% (b) 25% (c) 2596] Q 3(a) i Using...
QUESTION 3 Answer ALL parts. [Marks: (a) 50% (b) 25% (c) 2596] Q 3(a) i Using the Nernst equation, explain why a silver/silver chloride electrode can function as either a chloride, Cr, potentiometric sensor (lon Selective Electrode, ISE) OR as a reference electrode. i) Draw a labelled diagram of an electrochemical cell where the silver/silver chloride electrode acts as an lon Selective Electrode Q 3(b) A potential of 0.37 V was observed when a chloride, Cl, lon Selective Electrode was...
Determining the amount of sulfate ion (SO2) dissolved in seawater in the unit of molarity QUESTION Sulfate concentration in the seawater is about 28 mm (0.028 M). Take the reverse approach to the calculation procedure in the previous Question #1 (so called a backward calculation) and find a rough estimate for the volume of the seawater sample you may need to take from the beach like the one below. A 20.0 mL sample solution contains unknown amount of bromide ion...
2. Determine the molarity of the unknown NaCl solution. Show all work. 3. Determine the mass of NaCl dissolved in the unknown NaCl solution. Show your work. Table 2. Common lon Effect: Determination of Unknown Naci Volume of unknown solution, mL [Ag"],M Mass of AgCl(s), 56,685 mL 100 176997 200, 648
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) + CI+ (aq) Eºred = 0.2223 V And a copper electrode with 0.500 M Cut as the second half cell Cu2+ (aq) + 2 e → Cu(s) Eºred= 0.337 V The measured cell potential when the water sample was placed into the silver side of the...
(5 marks) A solution containing chloride ion was analyzed by the mL sample containing chloride ion was treated with 25.00 mL of 0.2500 M silver nitrate. The precipitated AgCl was removed from the solution by filtration, and 1.00 mL of 0.1000 M Fe3 was added to the filtrate in order to titrate excess Ag with SCN. A volume of 10.67 mL of 0.2380 M KSCN was required for solution to turn red colour. What is the concentration of chloride ion...
Question
A 20.0 mL sample solution contains unknown amount of bromide ion (Br). To this solution was added the solution that contains plenty of AgNO3. AgBr precipitates were formed. The precipitate were filtered and measured to be is 0.6964 g. What is the molarity of bromide ion in the original sample solution? The molar mass of Br = 80.0 g; the molar mass of AgBr = 188 g. (Solution) AgNO, is soluble and thus exists Ag+ ion and NO3-ion. Ag+...
3. Determine the mass of NaCl dissolved in the unknown NaCl solution. Show your work. Volume of unknown solution, ml [Ag+], M Mass of AgCl(s), g 56.685 ml .00176997 200.648
QUESTION 1 A 20.0 mL sample solution contains unknown amount of bromide ion (Br). To this solution was added the solution that contains plenty of AgNO3. AgBr precipitates were formed. The precipitate were filtered and measured to be is 0.6964 g. What is the molarity of bromide ion in the original sample solution? The molar mass of Br = 80.0 g; the molar mass of AgBr = 188 g. (Solution) AgNO, is soluble and thus exists Ag+ ion and NO3-ion....
QUESTION 3 Answer ALL parts. [Marks: (a) 50% (b) 25% (c) 2596] Q 3(a) i Using the Nernst equation, explain why a silver/silver chloride electrode can function as either a chloride, Cr, potentiometric sensor (lon Selective Electrode, ISE) OR as a reference electrode. i) Draw a labelled diagram of an electrochemical cell where the silver/silver chloride electrode acts as an lon Selective Electrode Q 3(b) A potential of 0.37 V was observed when a chloride, Cl, lon Selective Electrode was...
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