Alkalinity of raw intake water from Lake Michigan was 96.3 mg/L as CaCO3, Which of the...
Alkalinity of raw intake water from Lake Michigan was 96.3 mg/L as CaCO3, Which of the following alkalinity concentrations is correct? (a) is equal to 117.7 mg/L (b) is equal to 58700 μg/L (c) is equal to 0.96 meq/L (d) is equal to 1.58E-03 mol/L.
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Alkalinity of raw intake water from Lake Michigan was 96.3 mg/L
as CaCO3, Which of the...
2. Determine the approximate alkalinity (in mg/L as CaCO3) for a water which has 127.3 mg/L...
2. Determine the approximate alkalinity (in mg/L as CaCO3) for a water which has 127.3 mg/L of bicarbonate ions and 18.5 mg/L of carbonate ions.
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.
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...
Calculate the hardness of water in units of mg/L of Caco3 (see equation 15-7) if your titration a...
Calculate the hardness of water in units of mg/L of Caco3 (see equation 15-7) if your titration at pH 10 resulted in a concentration of 15 mmol/L. Round your answer to the nearest whole number and enter only the numerical answer into the box. In most natural waters, some magnesium ion is present, so expressing water hardness in units of mg/L of CaCO3 is an arbitrary convention that has been adopted for the sake of convenience (or tradition). The conversion...
. 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...
1. Some pond water contains 20.O mg/L of some algae, which can be represented by the chemical for...
1. Some pond water contains 20.O mg/L of some algae, which can be represented by the chemical formula CsHisO&N. Using the following reactions: CoHisO&N606CO2 6H2ONHa NHs 202 NOs H2O (a) Find the theoretical carbonaceous oxygen demand CBOD (b) Find the nitrogenous oxygen demand NBOD (c) Find the total theoretical biochemical oxygen demand BOD 2. A sandy soil has a hydraulic conductivity of 6.1 x104 m/d, a hydraulic gradient of 0.00141, and porosity of 20%. (a)what is the Darcy velocity (b)what...
5. What is the molecular weight (molar mass)of the common antacid calcium carbonate CaCO3? A) 100.9...
5. What is the molecular weight (molar mass)of the common antacid calcium carbonate CaCO3? A) 100.9 gimol B) 48.08 g/mol C) 17.0 g/'mol D) 4.00 x 102 g/mol E) 2.50 x 10 g/mol 6. Calculate the molar mass of rubidium carbonate, Rb CO A) 340.43 g/mol B) 255.00 g/mol C) 230.94 g/mol D) 145.47 gmol E) 113.48 g/mol 7. Balance the following equation: B) Cai(РО.h@ + 3SiOts) + 14C(s) 3CaSiOds) + į4COg) + Pa(s) -> 8. How many grams of...
QUESTION 6 The body uses urea, H2NCONH2, to conduct waste nitrogen from protein decomposition out of...
QUESTION 6 The body uses urea, H2NCONH2, to conduct waste nitrogen from protein decomposition out of the body.Calculate the molar mass of urea and determine the number of moles of nitrogen there are in 12.6 g of urea. The molar masses of the elements are as follows: N = 14.01, C = 12.01, O = 16.00, and H = 1.008 (all g/mol) a. 0.42 mol N b. 0.21 mol N c. 0.54 mol N d. 0.47 mol N e. None...
if you can't answer all ,please don't answer 1) of the reactions below, which one is...
if you can't answer all ,please don't answer
1) of the reactions below, which one is a decomposition reaction? A) Ca(NO3)2 + Na2S -- CdS +2NaNO3 B) NH4Cl- NH3 + HCI C) 2Mg + 02 - 2MgO D) 2N2 + 3H2 → 2NH3 E) 2CH4 + 402 - 2002 + 4H20 miches of - x 1? 2 2) Calculate the percentage by mass of ammonia in cisplatin, PtCl2/NH3 12. A) 12.53 B) 5.68 C) 18.09 D) 11.35 E) 4.67 3)...
2. Determine the approximate alkalinity (in mg/L as CaCO3) for a water which has 127.3 mg/L of bicarbonate ions and 18.5 mg/L of carbonate ions.
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...
Calculate the hardness of water in units of mg/L of Caco3 (see equation 15-7) if your titration at pH 10 resulted in a concentration of 15 mmol/L. Round your answer to the nearest whole number and enter only the numerical answer into the box. In most natural waters, some magnesium ion is present, so expressing water hardness in units of mg/L of CaCO3 is an arbitrary convention that has been adopted for the sake of convenience (or tradition). The conversion...
. 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...
1. Some pond water contains 20.O mg/L of some algae, which can be represented by the chemical formula CsHisO&N. Using the following reactions: CoHisO&N606CO2 6H2ONHa NHs 202 NOs H2O (a) Find the theoretical carbonaceous oxygen demand CBOD (b) Find the nitrogenous oxygen demand NBOD (c) Find the total theoretical biochemical oxygen demand BOD 2. A sandy soil has a hydraulic conductivity of 6.1 x104 m/d, a hydraulic gradient of 0.00141, and porosity of 20%. (a)what is the Darcy velocity (b)what...
5. What is the molecular weight (molar mass)of the common antacid calcium carbonate CaCO3? A) 100.9 gimol B) 48.08 g/mol C) 17.0 g/'mol D) 4.00 x 102 g/mol E) 2.50 x 10 g/mol 6. Calculate the molar mass of rubidium carbonate, Rb CO A) 340.43 g/mol B) 255.00 g/mol C) 230.94 g/mol D) 145.47 gmol E) 113.48 g/mol 7. Balance the following equation: B) Cai(РО.h@ + 3SiOts) + 14C(s) 3CaSiOds) + į4COg) + Pa(s) -> 8. How many grams of...
if you can't answer all ,please don't answer
1) of the reactions below, which one is a decomposition reaction? A) Ca(NO3)2 + Na2S -- CdS +2NaNO3 B) NH4Cl- NH3 + HCI C) 2Mg + 02 - 2MgO D) 2N2 + 3H2 → 2NH3 E) 2CH4 + 402 - 2002 + 4H20 miches of - x 1? 2 2) Calculate the percentage by mass of ammonia in cisplatin, PtCl2/NH3 12. A) 12.53 B) 5.68 C) 18.09 D) 11.35 E) 4.67 3)...
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