![A sample of water at pH 10.5 has 39.0 mg/L of CO32 and 24 mg/L of HCO3 a) Ignoring the contribution of [H] and [OH] to alkalinity, what is the alkalinity as CaCO3? b) Include the contribution of [H] and [OH], find the alkalinity as CaCO3](http://img.homeworklib.com/questions/46f1e430-8675-11eb-92b8-d39faf74d199.png?x-oss-process=image/resize,w_560)
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![Guium thot PH-lo.5 a TO caca 139x55 G59092 b) uce Km0w that [Ht] domot contribute 15.81 +3 ALKalinibe 3.lex10.g Х](http://img.homeworklib.com/questions/b654ae00-8675-11eb-90d5-9bb4c2c43cb8.png?x-oss-process=image/resize,w_560)
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A sample of water at pH 10.5 has 39.0 mg/L of CO32 and 24 mg/L of...
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.
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 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
For the water analysis given below, with pH = 8, find the following in ``mg/l as...
For the water analysis given below, with pH = 8, find the following in ``mg/l as CaCO3``: total hardness carbonate hardness noncarbonate hardness Cations mg/l Anions mg/l Na+ 20 Cl- 40 K+ 40 HCO3- 47 Ca2+ 10 CO32- 10 Mg2+ 10 SO4-2 5 Fe2+ 2 NO3- 10
A water sample has 5 mg/L of Nitrate, 10 mg/L of Potassium, 60 mg/L of Calcium,...
A water sample has 5 mg/L of Nitrate, 10 mg/L of Potassium, 60 mg/L of Calcium, and 60 mg/L of Magnesium. If the alkalinity is 394 mg/L of CaCO3, calculate the Total Hardness, Carbonate Hardness, and Noncarbonate Hardness using all polyvalent cations.
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 water sample has the following constituents Ca, mg/L 12 Mg-2, mg/L39 Na mg/L 12.8...
. A water sample has the following constituents Ca, mg/L 12 Mg-2, mg/L39 Na mg/L 12.8 K-, mg/L 3.4 Fe-, mg/L6.2 Mn-, mg/L 0.3 HCO mg/L 422 SO mg/L 101 CI mg/L 32 co,2mg/L 1.2 Temperature 25 C a. Calculate pH of that water b. Calculate the alkalinity (exactly, including effects of protons and hydroxyl ions); express alkalinity as mg/L CaCO e. Draw a bar chart for the water, Express all concentrations as mg/L CaCO, (The easiest way to do...
2. A dose of 41 mg/L of alum is used in coagulating a turbid water at...
2. A dose of 41 mg/L of alum is used in coagulating a turbid water at a water treatment plant treating a flow rate of 32 million gallons per day (mgd). The natural alkalinity of the source water is 10 mg/L (as CaCO3). a. Will the alkalinity be completely consumed in the reaction? If not, then how much alkalinity will be left? If so, then what concentration of caustic soda (NaOH) must be added to avoid a change in the...
(35 points) For the following water sample please complete the table (meq/L and mg/L as CaCO3) and the questions that f...
(35 points) For the following water sample please complete the table (meq/L and mg/L as CaCO3) and the questions that follow (Remember - 50 mg CaCO3/meq CaCO3) lon mg/L mg/meq meq/L (Please fill in the values below) as CaCO3 mg/L HCO3 125 61.0 2- 35 250 30.0 Mg K* Fe2 Mn2+ SO.2 NO3 NO2 Ca2 12.2 100 39.1 27.9 175 12 27.5 300 48.0 62.0 2 0.1 46.0 155 125 20.0 CI Na* 35.5 25 23.0 pH 7.0 (15 points)...
. A water sample has the following constituents Ca, mg/L 12 Mg-2, mg/L39 Na mg/L 12.8 K-, mg/L 3.4 Fe-, mg/L6.2 Mn-, mg/L 0.3 HCO mg/L 422 SO mg/L 101 CI mg/L 32 co,2mg/L 1.2 Temperature 25 C a. Calculate pH of that water b. Calculate the alkalinity (exactly, including effects of protons and hydroxyl ions); express alkalinity as mg/L CaCO e. Draw a bar chart for the water, Express all concentrations as mg/L CaCO, (The easiest way to do...
2. A dose of 41 mg/L of alum is used in coagulating a turbid water at a water treatment plant treating a flow rate of 32 million gallons per day (mgd). The natural alkalinity of the source water is 10 mg/L (as CaCO3). a. Will the alkalinity be completely consumed in the reaction? If not, then how much alkalinity will be left? If so, then what concentration of caustic soda (NaOH) must be added to avoid a change in the...
(35 points) For the following water sample please complete the table (meq/L and mg/L as CaCO3) and the questions that follow (Remember - 50 mg CaCO3/meq CaCO3) lon mg/L mg/meq meq/L (Please fill in the values below) as CaCO3 mg/L HCO3 125 61.0 2- 35 250 30.0 Mg K* Fe2 Mn2+ SO.2 NO3 NO2 Ca2 12.2 100 39.1 27.9 175 12 27.5 300 48.0 62.0 2 0.1 46.0 155 125 20.0 CI Na* 35.5 25 23.0 pH 7.0 (15 points)...
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