a 100.00ml aliquot of unknown Mg solution was exhaustively electrolyzed to deposit all manganese on the...
a 100.00ml aliquot of unknown Mg solution was exhaustively electrolyzed to deposit all manganese on the cathode. the mass of the cathode was 15.673g prior to electrolysis and 28.784g after. find the molarity of Mg in the unknown
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a 100.00ml aliquot of unknown Mg solution was exhaustively
electrolyzed to deposit all manganese on the...
5- An aqueous Ti(NO3)3 solution was electrolyzed for 45 min to deposit 6.18 grams of Titanium....
5- An aqueous Ti(NO3)3 solution was electrolyzed for 45 min to deposit 6.18 grams of Titanium. What is the constant current (in Amps) used in this electrolysis? (molar mass of Ti = 47.87 g/mol, Faraday Cte = 96,485 C/mole e")
A 15.00mL solution of unknown concentration is diluted to 250.00mL. A 10.00mL aliquot of the 250.00mL...
A 15.00mL solution of unknown concentration is diluted to 250.00mL. A 10.00mL aliquot of the 250.00mL solution is analyzed with the spectrometer and the concentration of the solution is found to be 3.50x10^-2 mg/mL. What is the concentration of the original sample?
A titration was performed to standardize an EDTA solution. a) A 25.00 mL aliquot of a...
A titration was performed to standardize an EDTA solution. a) A 25.00 mL aliquot of a standard solution containing 0.01500 M Ca2+ required 42.87 mL of EDTA to reach the endpoint. The molarity of the EDTA solution is: ________ M b) That same EDTA solution was then used to titrate an unknown hard water sample. A 40.00 mL aliquot of unknown hard water required 34.21 mL of EDTA solution to reach a distinct endpoint. The concentration of Ca2+ ions (assuming...
Need help on how to solve to get the Ca in aliquot Task 3. Unknown Ca...
Need help on how to solve to get the Ca in aliquot
Task 3. Unknown Ca Sample Gravimetric Analysis Result Unknown Ca Stock Solution Used 10.00 Unknown Ca Working Solution Vol 500.00 Unknown Ca Working Solution Aliquot 50.00 Molar Mass of CaC204H2O 146.113 Molar Mass of Ca 40.078 t value at 95% C.LL. 4.3027 Number of Measurements (n) Degree of Freedom (d.f.) (mL) (mL) (mL) (g/mol) (g/mol) #3 Table 3-1. Unknown Ca gravimetric analysis result Replicate # #1 #2 Empty...
Be sure to answer all parts. When an aqueous solution containing gold (III) salt is electrolyzed,...
Be sure to answer all parts. When an aqueous solution containing gold (III) salt is electrolyzed, metallic gold is deposited at the cathode, and oxygen gas is generated at the anode. (a) If 6.05 g of Au is deposited at the cathode, calculate the volume of 02 generated at 23°C and 752 mmHg. (b) What is the current used if the electrolytic process took 4.30 h?
Be sure to answer all parts. When an aqueous solution containing gold (III) salt is electrolyzed,...
Be sure to answer all parts. When an aqueous solution containing gold (III) salt is electrolyzed, metallic gold is deposited at the cathode, and oxygen gas is generated at the anode. (a) If 7.49 g of Au is deposited at the cathode, calculate the volume of O2 generated at 23°C and 740 mmHg. L (b) What is the current used if the electrolytic process took 6.90 h? A
2. Determine the molarity of the unknown NaCl solution. Show all work. 3. Determine the mass...
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 solution containing 28.35 mg of an unknown protein per 24.0 mL solution was found to...
A solution containing 28.35 mg of an unknown protein per 24.0 mL solution was found to have an osmotic pressure of 3.50 torr at 18 ∘C. What is the molar mass of the protein?
A 188.6 mL sample of an aqueous solution at 25°C contains 80.2 mg of an unknown...
A 188.6 mL sample of an aqueous solution at 25°C contains 80.2 mg of an unknown nonelectrolyte compound. If the solution has an osmotic pressure of 8.44 torr, what is the molar mass (in g/mol) of the unknown compound?
A solution containing 27.55 mg of an unknown protein per 25.0 mL of solution was found to have...
A solution containing 27.55 mg of an unknown protein per 25.0 mL of solution was found to have an osmotic pressure of 3.22 torr at 25.0oC. What is the molar mass ofthe protein
5- An aqueous Ti(NO3)3 solution was electrolyzed for 45 min to deposit 6.18 grams of Titanium. What is the constant current (in Amps) used in this electrolysis? (molar mass of Ti = 47.87 g/mol, Faraday Cte = 96,485 C/mole e")
Need help on how to solve to get the Ca in aliquot
Task 3. Unknown Ca Sample Gravimetric Analysis Result Unknown Ca Stock Solution Used 10.00 Unknown Ca Working Solution Vol 500.00 Unknown Ca Working Solution Aliquot 50.00 Molar Mass of CaC204H2O 146.113 Molar Mass of Ca 40.078 t value at 95% C.LL. 4.3027 Number of Measurements (n) Degree of Freedom (d.f.) (mL) (mL) (mL) (g/mol) (g/mol) #3 Table 3-1. Unknown Ca gravimetric analysis result Replicate # #1 #2 Empty...
Be sure to answer all parts. When an aqueous solution containing gold (III) salt is electrolyzed, metallic gold is deposited at the cathode, and oxygen gas is generated at the anode. (a) If 6.05 g of Au is deposited at the cathode, calculate the volume of 02 generated at 23°C and 752 mmHg. (b) What is the current used if the electrolytic process took 4.30 h?
Be sure to answer all parts. When an aqueous solution containing gold (III) salt is electrolyzed, metallic gold is deposited at the cathode, and oxygen gas is generated at the anode. (a) If 7.49 g of Au is deposited at the cathode, calculate the volume of O2 generated at 23°C and 740 mmHg. L (b) What is the current used if the electrolytic process took 6.90 h? A
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
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