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![o given tal [Hoog] = 127- 3 mg [c034) = 18.5 position Muteceler wt. of (H603]= 1+12+3x16 = 6 1 umy molecular wt. of (cor2] =](http://img.homeworklib.com/questions/74ed1880-3b47-11ec-a8f4-41b70a86931a.png?x-oss-process=image/resize,w_560)
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2. Determine the approximate alkalinity (in mg/L as CaCO3) for a water which has 127.3 mg/L...
A water sample has a total hardness of 275 mg/L as CaCO3 and a total alkalinity...
A water sample has a total hardness of 275 mg/L as CaCO3 and a total alkalinity of 320 mg/L as CaCO3. What are the carbonate and non-carbonate hardness (in mg/L as CaCo2) of the water sample? Use the relationship when alkalinity < total hardness, carbonate hardness(mg/L) - alkalinity(mg/L) and when alkalinity >/= total hardness Carbonate hardness(mg/L) -totalk hardness(mg/L) if necessary
Alkalinity: The approximate alkalinity of a water sample is 2.21 x 10-2 M at pH=10.33. Determine...
Alkalinity: The approximate alkalinity of a water sample is 2.21 x 10-2 M at pH=10.33. Determine the concentration of carbonate (CO32-) in M and mg/L as CaCO3. (pKa=10.33). Answer: [CO32-] = 7.37x10-3 M and 737 mg/L as CaCO3 Please show the solution to this problem.
A solution has a pH of 7.3 and an alkalinity of 25 mg/L as CaCO3. Essentially...
A solution has a pH of 7.3 and an alkalinity of 25 mg/L as CaCO3. Essentially all the alkalinity is contributed by the carbonate system. The water also contains 10^(-4) M Fe2+ (5.5 mg Fe2+/L). To remove the iron, oxygen is injected into the solution, converting the Fe2+ to Fe3+; the Fe3+ then precipitates as ferric hydroxide according to the following reaction: Fe2+ 1/4O2 + 2.5H20 -> Fe(OH)3 + 2H+. Calculate the pH of water after the reactions are complete....
A student is running a titration in the laboratory to determine the alkalinity (Total, bicarbonate and...
A student is running a titration in the laboratory to determine the alkalinity (Total, bicarbonate and carbonate, hydroxide) of a drinking water sample. The initial pH of the sample is 11.6; 0.02N H2SO4 is used as the titrant; and the sample volume subjected to the titration is 100 mL (0.1L). The results of the titrations were as follows: 18.3 (volume of titrant to drop the pH from 11.6 to 8.3) = 10.0 mL; V4.5 (volume of titrant to drop the...
Determine the alkalinity in mg/L CaCOs for DI water and tap water based on the number of digits (...
To pH of 8.3
To pH of 4.5
0
320
Alkalinity.
Wastewater Problem.
Determine the alkalinity in mg/L CaCOs for DI water and tap water based on the number of digits (digits= mg/L CaCO3 in 100 ml) Assuming that 25mg/L of filter alum [Al2(SO4)3-14.3 H2O] with MW-600 was used for coagulation, determine the total amount of alkalinity consumed in mg/L CaCOs from coagulation and flocculation. Is the amount of alkalinity consumed from coagulation less than, equal to, or greater than...
1a.) From water sample, 10 mg/L HCO3- as CaCO3, 10 mg/L CO3- as CaCO3 and 50...
1a.) From water sample, 10 mg/L HCO3- as CaCO3, 10 mg/L CO3- as CaCO3 and 50 mg/L Ca+ as CaCO3 were measured. pH was near neutral. What is alkalinity? _____ mg/L as CaCO3 1b.) From water sample, 10 mg/L HCO3- as CaCO3, 10 mg/L CO3- as CaCO3 and 50 mg/L Ca+ as CaCO3 were measured. pH was near neutral. What is alkalinity? _____ mg/L as CaCO3 1c.) Calculate Ksp = _____ A2BO3 ->2A++ BO32- Molar concentration of A+ = Molar...
A water with a pH of 9.0 contains 20 mg/L CO3-2 and 55 mg/L HCO3-. Calculate the alkalinity of the water expressed as meq/L (milli equivalents per liter) and as mg/L as CaCO3.
A water with a pH of 9.0 contains 20 mg/L CO3-2 and 55 mg/L HCO3-. Calculate the alkalinity of the water expressed as meq/L (milli equivalents per liter) and as mg/L as CaCO3.
9. Given that water contains 10 mg/L of bicarbonate at pH 5, what is the alkalinity...
9. Given that water contains 10 mg/L of bicarbonate at pH 5, what is the alkalinity in mg/Las CaCO,? 10. Report the alkalinity (in mg/L as Caco,) for that contains 10 mg/L of bicarbonate but has pH 10.
need HW help thx! 2. For the following, assume pKi = 6.35 and pK2 10.33. (a) The alkalinity and initial pH of a wate...
need HW help thx!
2. For the following, assume pKi = 6.35 and pK2 10.33. (a) The alkalinity and initial pH of a water sample are measured to be 0.01 eq/L and 6.35. What are the bicarbonate and carbonate concentrations in mol/L? Answer: 0.01 Mand 0 (b) The alkalinity and initial pH of a water sample are measured to be 500 mg/L as CaCO3 and 10.33. What are the bicarbonate and carbonate concentrations in mg/L? Answer: 199 and 196 mg/L...
A water sample contains a 4:1 molar ratio of bicarbonate to carbonate at a pH of...
A water sample contains a 4:1 molar ratio of bicarbonate to carbonate at a pH of 8.5. The alkalinity of the sample is 75 mg/L as CaCO3. Determine the mg/L values of bicarbonate and carbonate in the solution.
A student is running a titration in the laboratory to determine the alkalinity (Total, bicarbonate and carbonate, hydroxide) of a drinking water sample. The initial pH of the sample is 11.6; 0.02N H2SO4 is used as the titrant; and the sample volume subjected to the titration is 100 mL (0.1L). The results of the titrations were as follows: 18.3 (volume of titrant to drop the pH from 11.6 to 8.3) = 10.0 mL; V4.5 (volume of titrant to drop the...
To pH of 8.3
To pH of 4.5
0
320
Alkalinity.
Wastewater Problem.
Determine the alkalinity in mg/L CaCOs for DI water and tap water based on the number of digits (digits= mg/L CaCO3 in 100 ml) Assuming that 25mg/L of filter alum [Al2(SO4)3-14.3 H2O] with MW-600 was used for coagulation, determine the total amount of alkalinity consumed in mg/L CaCOs from coagulation and flocculation. Is the amount of alkalinity consumed from coagulation less than, equal to, or greater than...
9. Given that water contains 10 mg/L of bicarbonate at pH 5, what is the alkalinity in mg/Las CaCO,? 10. Report the alkalinity (in mg/L as Caco,) for that contains 10 mg/L of bicarbonate but has pH 10.
need HW help thx!
2. For the following, assume pKi = 6.35 and pK2 10.33. (a) The alkalinity and initial pH of a water sample are measured to be 0.01 eq/L and 6.35. What are the bicarbonate and carbonate concentrations in mol/L? Answer: 0.01 Mand 0 (b) The alkalinity and initial pH of a water sample are measured to be 500 mg/L as CaCO3 and 10.33. What are the bicarbonate and carbonate concentrations in mg/L? Answer: 199 and 196 mg/L...
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