Groundwater in New Mexico, initially contains 1.800 mg · L−1 of iron as Fe3+. What must...
Groundwater in New Mexico, initially contains 1.800 mg · L−1 of iron as Fe3+. What must the pH be raised to in order to precipitate all but 0.30 mg · L−1 of the iron? The temperature of the water is 25◦C. 1. Give the formula for the mineral that precipitates out of solution if pH is raised 2. Answer the question as stated in the book, except, the initial pH is 2.0 (acidic groundwater) and the final concentration of Fe3+ is 0.150 mg/L
Homework Answers
Add Answer to:
Groundwater in New Mexico, initially contains 1.800 mg · L−1 of
iron as Fe3+. What must...
HW help thx! 4. Groundwater in Pherric, New Mexico, is very acidic and initially contains 1.800...
HW help thx!
4. Groundwater in Pherric, New Mexico, is very acidic and initially contains 1.800 mg/L of iron as Felt Use pKsp = 38.57 for Fe(OH)3 (a) To what pH must the water be raised in order to precipitate all but 0.30 mg/L of the iron? The temperature of the water is 25°C. (Hint: "All but 0.30 mg/L" means that there 0.30 mg/L left in solution after the Fe(OH)3 precipitates.) Answer: pH = 3.35 (b) If the pH was...
2. A groundwater contains 3.6 mg/L Fe+2 and 0.78 mg/L Mn+2. a. What dosage of ozone in mg/L is required to oxidize the...
2. A groundwater contains 3.6 mg/L Fe+2 and 0.78 mg/L Mn+2. a. What dosage of ozone in mg/L is required to oxidize the soluble iron and manganese. (Show balanced half reactions, balanced overall reactions, and stoichiometry derived from overall reactions). b. What mass concentration of solids is produced? c. Considering only the reaction of ozone and iron: If the pH is held constant at 6, the dissolved oxygen concentration is near saturation (assume 10 mg/L), and the residual ozone concentration...
Based on the document below, 1. Describe the hypothesis Chaudhuri et al ids attempting to evaluate;...
Based on the document below,
1. Describe the hypothesis Chaudhuri et al ids attempting to
evaluate; in other words, what is the goal of this paper? Why is he
writing it?
2. Does the data presented in the paper support the hypothesis
stated in the introduction? Explain.
3.According to Chaudhuri, what is the potential role of thew
alkaline phosphatase in the cleanup of industrial waste.
CHAUDHURI et al: KINETIC BEHAVIOUR OF CALF INTESTINAL ALP WITH PNPP 8.5, 9, 9.5, 10,...
What results when a secondary alcohol is oxidized? a. a ketone d. an acid b. an...
What results when a secondary alcohol is oxidized? a. a ketone d. an acid b. an amine e. no reaction c. an aldehyde Which of the following combinations will react spontaneously? A. 12 + Cu2+ B. Pb2+ + Ag C. Zn2+ + Mg D. Sn2+ + Ni2+ The general formula for a cycloalkane can be represented by which of the following? a. C,H, C. CH b. C.H2n+2 d. C.H21-2 In a certain reaction AH =-136 kJ and E, = 96...
1-12 please practice PATIENT CASE Mother's Chief Complaints "Our daughter has been vomiting and has had...
1-12 please practice
PATIENT CASE Mother's Chief Complaints "Our daughter has been vomiting and has had diarrhea for three days. She also has had a fever, but I've been giving her acetaminophen every six hours. The clear liquids and Pedialyte that she has been drinking don't seem to be helping much and she looks so sickly." HPI J.L. is a 4%-month-old Asian American female infant who was taken to the emergency room of a local hospital because her parents were...
10. Write a one-page summary of the attached paper? INTRODUCTION Many problems can develop in activated...
10. Write a one-page summary of the attached paper? INTRODUCTION Many problems can develop in activated sludge operation that adversely affect effluent quality with origins in the engineering, hydraulic and microbiological components of the process. The real "heart" of the activated sludge system is the development and maintenance of a mixed microbial culture (activated sludge) that treats wastewater and which can be managed. One definition of a wastewater treatment plant operator is a "bug farmer", one who controls the aeration...
HW help thx!
4. Groundwater in Pherric, New Mexico, is very acidic and initially contains 1.800 mg/L of iron as Felt Use pKsp = 38.57 for Fe(OH)3 (a) To what pH must the water be raised in order to precipitate all but 0.30 mg/L of the iron? The temperature of the water is 25°C. (Hint: "All but 0.30 mg/L" means that there 0.30 mg/L left in solution after the Fe(OH)3 precipitates.) Answer: pH = 3.35 (b) If the pH was...
Based on the document below,
1. Describe the hypothesis Chaudhuri et al ids attempting to
evaluate; in other words, what is the goal of this paper? Why is he
writing it?
2. Does the data presented in the paper support the hypothesis
stated in the introduction? Explain.
3.According to Chaudhuri, what is the potential role of thew
alkaline phosphatase in the cleanup of industrial waste.
CHAUDHURI et al: KINETIC BEHAVIOUR OF CALF INTESTINAL ALP WITH PNPP 8.5, 9, 9.5, 10,...
What results when a secondary alcohol is oxidized? a. a ketone d. an acid b. an amine e. no reaction c. an aldehyde Which of the following combinations will react spontaneously? A. 12 + Cu2+ B. Pb2+ + Ag C. Zn2+ + Mg D. Sn2+ + Ni2+ The general formula for a cycloalkane can be represented by which of the following? a. C,H, C. CH b. C.H2n+2 d. C.H21-2 In a certain reaction AH =-136 kJ and E, = 96...
1-12 please practice
PATIENT CASE Mother's Chief Complaints "Our daughter has been vomiting and has had diarrhea for three days. She also has had a fever, but I've been giving her acetaminophen every six hours. The clear liquids and Pedialyte that she has been drinking don't seem to be helping much and she looks so sickly." HPI J.L. is a 4%-month-old Asian American female infant who was taken to the emergency room of a local hospital because her parents were...
Most questions answered within 3 hours.
-
What are John’s potential claims if he is terminated
this week?
John is a 54-year-old man...
asked 9 minutes ago -
A (8.5) cm tall object is placed at a distance of (14.2) cm from
a convex...
asked 18 minutes ago -
(2) For the following questions, consider a data set that
exhibits a normal distribution. Report the...
asked 19 minutes ago -
What exactly is an information system? How does it work" What
are its people organization,
...
asked 20 minutes ago -
The Food Marketing Institute shows that 17% of households spend
more than $100 per week on...
asked 30 minutes ago -
Go to NCBI BLAST search web page
1st search: GEKDLRRAKDINQEVYNF
2nd search: PTSQRLQLLEPFDK
3rd search: GEKDLRRAKDINQEVYNF...
asked 33 minutes ago -
Explain how each of the following three conditions could be a
red flag for a register...
asked 38 minutes ago -
In a two-way factorial ANOVA, the final F-ratio for
factor AxB is determined by dividing _____...
asked 1 hour ago -
Show your solutions for answer.
4. An aqueous solution contains 9.21 g of
K4Fe(CN)6 in a...
asked 38 minutes ago -
The random variable X has a uniform distribution with values
between 16 and 18. What is...
asked 48 minutes ago -
Evaluate each of the following transactions in terms of their
effect on assets, liabilities, and equity....
asked 47 minutes ago -
The amounts of nicotine in a certain brand of cigarette are
normally distributed with a mean...
asked 1 hour ago