Suppose that you started with 5 ml of 100 ppm Cu 2+ solution and added it...
Suppose that you started with 5 ml of 100 ppm Cu 2+ solution and added it to 0.1g of soil. After mixing, you filter it and find that the concentration of the filtered solution is 5 ppm Cu 2+ . From the above scenario, calculate the mass of Cu 2+ bound to the soil. 2. Calculate the Kdist.
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Suppose that you started with 5 ml of 100 ppm Cu 2+ solution and
added it...
2) When 52.0 mL of 0.1250M H2SO4 is added to 100 mL of a solution of...
2) When 52.0 mL of 0.1250M H2SO4 is added to 100 mL of a solution of Pbl2, a precipitate of PbSO4 forms. The PBSO4 is then filtered from the solution, dried, and weighed. If the recovered PbSO4 is found to have a mass of 0.0471 g, what was the concentration of iodide ions in the original solution?
2) When 38.0 mL of 0.1250 MH,SO, is added to 100 mL of a solution of...
2) When 38.0 mL of 0.1250 MH,SO, is added to 100 mL of a solution of Pbly, a precipitate of PbSO4 forms. The PbSO4 is then filtered from the solution, dried, and weighed. If the recovered PbSO4 is found to have a mass of 0.0471 g, what was the concentration of iodide ions in the original solution?
a) Suppose that 1 g of dry soil is mixed vigorously with 100 mL of 0.5 M ammonium acetate solution. The soil and water mixture is filtered to remove the soil. The concentrations of calcium, magn...
a) Suppose that 1 g of dry soil is mixed vigorously with 100 mL of 0.5 M ammonium acetate solution. The soil and water mixture is filtered to remove the soil. The concentrations of calcium, magnesium, potassium, and hydrogen ions in the filtrate are measured. The concentrations of the cations found in the extraction solution are as follows: Ca2+-25.8 μg/mL, Mg2 3.4 ug/mL, K -2.2 ug/mL. Calculate the CEC of the soil. This is the same problem from Discussion 2....
5. A solution is made by mixing 200.0 ml of 1.5 x 10-4 M Cu(NO3)(aq) with...
5. A solution is made by mixing 200.0 ml of 1.5 x 10-4 M Cu(NO3)(aq) with 250.0 ml of 0.20 M NH3(aq). Calculate the concentration of copper ion (Cu? (aq)) in the solution when it reaches equilibrium. (Kr for [Cu(NH3)4]2+ = 1.7 x 1013)
I really can't seem to get a hang of the PPM calculations. Pretend like you're explaining...
I really can't seem to get a hang of the PPM calculations.
Pretend like you're explaining this to a 5 year old if you can.
2. (Solution Preparation 8 points) You have a standardized aqueous solution with a Cu concentration of 23.1 ppm (in terms of mass) and a density = 1.03 g/ml at 298 K. From this standardized solution you need to create the dilutions specified below. Make sure to report all quantities with the proper number of significant...
1- Suppose 15 mL of 0.50 M ammonium chloride are added to the 40.00 mL of...
1- Suppose 15 mL of 0.50 M ammonium chloride are added to the 40.00 mL of 1.0 M ammonia and 15 mL of water. (A) Blank # 1: Calculate the pH of the buffer solution. (B) Blank # 2: Suppose 10.00 mL of 0.10 M NaOH are added to the buffer. Calculate the moles of ammonia remaining in solution. Report your answer using decimal notation (not scientific notation). (C) Blank # 3: Suppose 10.00 mL of 0.10 M NaOH are...
When 20.0 ml of a 0250 M (NHS solution is added to 1500 ml of a...
When 20.0 ml of a 0250 M (NHS solution is added to 1500 ml of a solution of CuNOJ, CuS preciptate forms The precipitate is then filtered from the solution, dried, and weighed If the recovered CuS is found to have a mass of 0.3491 g what was the concentration of copper lons in the original CuNO) solution? 333-102 M O 365 10 M O 243 102 M O 122 102 M O 487 102 M
100 mL of aqueous solution containing 2,4,6-trinitrotoluene (TNT) at an initial concentration of 0.05 ppm is...
100 mL of aqueous solution containing 2,4,6-trinitrotoluene (TNT) at an initial concentration of 0.05 ppm is shaken with 10 mL hexane. After the phase separation, it was determined that the organic phase has 0.4 ppm. What is the partition coefficient, and what is the percent extracted? If the equilibrium concentration (rather than initial concentration) is 0.05 ppm, this would simplify the calculation. What would then be the partition coefficient and percent extracted? (Please answer or provide something for the second...
you mix a 200.0 ml sample of a solution that is 1.5x10^-3 M in Cu(NO3)2 with...
you mix a 200.0 ml sample of a solution that is 1.5x10^-3 M in Cu(NO3)2 with a 250.0 ml sample of a solution that is .20 M in NH3. After the solution reaches equilibrium, what concentration of cu2+ remains?
10.6 10.00 mL of a sample of a solution containing Feand Co are added to 100...
10.6 10.00 mL of a sample of a solution containing Feand Co are added to 100 mL of pH 4.5 buffer and then titrated to a Cu-PAN endpoint with 18.82 mL of 0.05106 M EDTA. Then, 25.00 mL of the same of the same solution are added to 100 mL of pH 4.5 buffer along with 10 mL of 1 M potassium fluoride, which is added to mask the Fe'. This solution was titrated to a Cu-PAN endpoint with 13.40...
2) When 52.0 mL of 0.1250M H2SO4 is added to 100 mL of a solution of Pbl2, a precipitate of PbSO4 forms. The PBSO4 is then filtered from the solution, dried, and weighed. If the recovered PbSO4 is found to have a mass of 0.0471 g, what was the concentration of iodide ions in the original solution?
2) When 38.0 mL of 0.1250 MH,SO, is added to 100 mL of a solution of Pbly, a precipitate of PbSO4 forms. The PbSO4 is then filtered from the solution, dried, and weighed. If the recovered PbSO4 is found to have a mass of 0.0471 g, what was the concentration of iodide ions in the original solution?
a) Suppose that 1 g of dry soil is mixed vigorously with 100 mL of 0.5 M ammonium acetate solution. The soil and water mixture is filtered to remove the soil. The concentrations of calcium, magnesium, potassium, and hydrogen ions in the filtrate are measured. The concentrations of the cations found in the extraction solution are as follows: Ca2+-25.8 μg/mL, Mg2 3.4 ug/mL, K -2.2 ug/mL. Calculate the CEC of the soil. This is the same problem from Discussion 2....
5. A solution is made by mixing 200.0 ml of 1.5 x 10-4 M Cu(NO3)(aq) with 250.0 ml of 0.20 M NH3(aq). Calculate the concentration of copper ion (Cu? (aq)) in the solution when it reaches equilibrium. (Kr for [Cu(NH3)4]2+ = 1.7 x 1013)
I really can't seem to get a hang of the PPM calculations.
Pretend like you're explaining this to a 5 year old if you can.
2. (Solution Preparation 8 points) You have a standardized aqueous solution with a Cu concentration of 23.1 ppm (in terms of mass) and a density = 1.03 g/ml at 298 K. From this standardized solution you need to create the dilutions specified below. Make sure to report all quantities with the proper number of significant...
When 20.0 ml of a 0250 M (NHS solution is added to 1500 ml of a solution of CuNOJ, CuS preciptate forms The precipitate is then filtered from the solution, dried, and weighed If the recovered CuS is found to have a mass of 0.3491 g what was the concentration of copper lons in the original CuNO) solution? 333-102 M O 365 10 M O 243 102 M O 122 102 M O 487 102 M
10.6 10.00 mL of a sample of a solution containing Feand Co are added to 100 mL of pH 4.5 buffer and then titrated to a Cu-PAN endpoint with 18.82 mL of 0.05106 M EDTA. Then, 25.00 mL of the same of the same solution are added to 100 mL of pH 4.5 buffer along with 10 mL of 1 M potassium fluoride, which is added to mask the Fe'. This solution was titrated to a Cu-PAN endpoint with 13.40...
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