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The COD can be estimated from the concentration of oxidizable compound in the sample, based on its stoichiometric reaction with oxygen to yield CO2 (assume all C goes to CO2), H2O (assume all H goes to H2O), and NH3 (assume all N goes to NH3), using the following formula:COD = (C/FW)(RMO)(32)Where C = Concentration of oxidizable compound in the sample,FW = Formula weight of the oxidizable compound in the sample,RMO = Ratio of the # of moles of oxygen to # of moles of oxidizable compound in their reaction to CO2, water, and ammonia
For example, if a sample has 500 wppm of phenol:C6H5OH + 7O2 → 6CO2 + 3H2OCOD = (500/94)(7)(32) = 1191 wppm
What else can I help you with?
What will happen to the COD value if HgSO4 is not added?
Chlorine will not be seperated out of the sample effluent.
Value of the sample correlation coefficient calculator?
It will be invaluable if (when) you need to calculate sample correlation coefficient, but otherwise, it has pretty much no value.
How do you put 2x plus y equals 9 on a graph?
Solve for y; calculate a few sample points (plug in a value for x, then calculate the corresponding value for y); plot on the graph. Two points should be enough in theory (this equation is a straight line), but a third point helps you confirm that your calculations are correct.Solve for y; calculate a few sample points (plug in a value for x, then calculate the corresponding value for y); plot on the graph. Two points should be enough in theory (this equation is a straight line), but a third point helps you confirm that your calculations are correct.Solve for y; calculate a few sample points (plug in a value for x, then calculate the corresponding value for y); plot on the graph. Two points should be enough in theory (this equation is a straight line), but a third point helps you confirm that your calculations are correct.Solve for y; calculate a few sample points (plug in a value for x, then calculate the corresponding value for y); plot on the graph. Two points should be enough in theory (this equation is a straight line), but a third point helps you confirm that your calculations are correct.
What is a sample statistics?
It is a value calculated from the sample values only.It is a value calculated from the sample values only.It is a value calculated from the sample values only.It is a value calculated from the sample values only.
What is the process for calculating the sample average approximation in statistical analysis?
To calculate the sample average approximation in statistical analysis, you add up all the values in the sample and then divide by the total number of values in the sample. This gives you the average value of the sample, which is an approximation of the overall average for the entire population.
How do you calculate percent inhibition?
Percent inhibition can be calculated using the formula: % Inhibition = [(Control value - Sample value) / Control value] x 100. First, subtract the sample value from the control value, then divide that result by the control value, and finally multiply by 100 to express it as a percentage.
Why you need sampling distribution?
in order to calculate the mean of the sample's mean and also to calculate the standard deviation of the sample's
Can the five-number summary be used to calculate the standard deviation?
No. To calculate a sample standard deviation one requires the sample values. The five-number summary provides only the lowest value, the highest, the median, and the upper and lower quartiles. In any sample of size greater than five some values will be missing from the summary.
Why does COD disappear?
COD, or Chemical Oxygen Demand, may disappear in a water sample due to the degradation of organic matter by microbial activity, which consumes oxygen. Additionally, if the sample is exposed to sunlight, photodegradation can break down certain compounds, reducing COD levels. Changes in temperature or pH may also affect the solubility and stability of organic materials, leading to a decline in COD.
What is the method to calculate the mass in grams of each sample?
To calculate the mass in grams of each sample, you can use a balance or scale to measure the weight of the sample. The weight measured in grams is equivalent to the mass of the sample.
How do you calculate the median for the random sample?
To calculate the median for a random sample, first, arrange the data points in ascending order. If the number of observations (n) is odd, the median is the middle value, which is the value at position (n + 1) / 2. If n is even, the median is the average of the two middle values, located at positions n / 2 and (n / 2) + 1. This process ensures that the median accurately represents the central tendency of the sample.
How do you calculate enrichment factor of Zn in soil?
To calculate the enrichment factor of the Zn in soil, one must use the Proton Eclat emulator. On the emulator, select the soil type and then determine the nucleus of the enrichment on the soil.
