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Question 4975

posted 1 years ago

3) Calculate the standard deviation of turbidity measurements on a new column

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Question 4974

posted 1 years ago

2) Calculate an average of turbidity based on your 3 measurements on a new column

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Question 4973

posted 1 years ago

You have conducted 3 series of coagulation and flocculation experiments.
The results of your experiment:
1) Calculate the concentration of FeC13 for each jar
You have collected about 20 [1] of surface water sample from Wissahickon creekduring rainy day in Philadelphia.

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Question 4977

posted 1 years ago

5) Fit a trendline (polynomial) for your average turbidity show the equation and R-squared on the graph

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Question 4978

posted 1 years ago

6) Based on the fitted trendline, find the optimum does of FeCl3 to achieve the lowest turbidity

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Question 4976

posted 1 years ago

4) Draw a graph as the following:x-axis: concentration, y-axis-primary: turbidity, y-axis-secondary: pH use the average turbidity for y-axis-primary: turbidity

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Question 8980

posted 1 years ago

Instructions
As COVID-19 (coronavirus) spreads across the globe, scientists have found the virus can persist in the air for hours and on surfaces for days. In this report, you are required to review scientific articles on the persistence of the virus in the air (indoor and outdoor) and on different types of surfaces. In addition, you are required to identify some of the most effective methods that are currently used to clean and disinfect the various from air and surfaces.
The report should confirm to the following requirements:
1. The report must be written using Microsoft office or other word processing software packages.
2.The report should be three pages (excluding cover page, tables, figures, and references), single spaced, and 12-point font size (times or times new roman). The margins setting should not exceed 1" for top, bottom, left, and right.
3.Tables, figures, and references should be placed at the end of the report.
4. Submit electronic copy via Canvas by the due date.
Grading
The report will be evaluated on the basis of technical quality, accuracy of information,readability, and conformity to formatting and page requirements. The report will be graded out of 100% and the breakdown is as follows:
1.Report format (page, line spacing, font size and type, margins, etc.) – 10%
2.Technical quality, readability, and organization of the report – 30%
3.Accuracy of information contained in the report – 30%
4.Originality of the report – 30%

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Question 13275

posted 1 years ago

1.Estimate the alkalinity, expressed as mg/L of CaCO3, of the following sample (Ca+2 =
\begin{array}{l} \text { 190.2; } \mathrm{Mg}^{+2}=84.1 ; \mathrm{Na}^{+}=75.2, \mathrm{~K}^{+}=5.1 ; \mathrm{Fe}^{+2}=0.2 ; \mathrm{HCO}_{3}^{-}=260 ; \mathrm{SO}_{4}^{2}=64 ; \mathrm{Cl}^{-}= \\ \text {440.4; } \left.\mathrm{NO}_{3}^{-}=35.1 ; \mathrm{CO}_{3}^{2}=30 \mathrm{mg} / \mathrm{L}\right) \end{array}

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Question 13279

posted 1 years ago

5. A wastewater sample is diluted by a factor of 10 using seeded dilution water. If the following results are obtained, determine the 5-d BOD concentration.

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Question 13284

posted 1 years ago

10. Determine graphically the 48-hr LC50 Value in percent by volume for the following toxicity test data.

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