How can you calculate BOD Mathmaticly? - Answers
The Biochemical Oxygen Demand (BOD) of a sample is the amount of dissolved oxygen required by aerobic microorganisms to breakdown organic matter in the sample.The test is …
How to calculate the fluoride (ppm) concentration in a solution?
Feb 7, 2025 · To calculate the concentration of a salt solution in parts per million (ppm), divide the mass of the salt by the total mass of the solution and then multiply by 1,000,000.
Why sample need to be diluted? - Answers
Jun 16, 2024 · When diluted water is added in surface wastewater to take immediate BOD is called unseeded and after 5 days of period wastewater received saturated oxygen from diluted …
How do you calculate concentration from peak area in HPLC
Feb 7, 2025 · To calculate concentration from peak area in HPLC analysis, you can use the formula: Concentration Peak Area / (Slope x Injection Volume). The peak area is obtained …
What is the formula to calculate ship speed from RPM of an
May 22, 2025 · What eqution do you use to calculate speed? To calculate average speed, you measure how long it takes (T) to get from point A to point B. Then you use the formula below: …
How do you calculate the number of moles of sulfuric acid
Feb 7, 2025 · To calculate the number of moles of sulfuric acid used in a titration, you can use the formula: moles concentration x volume. First, determine the concentration of the sulfuric acid …
How do you calculate the friction force when given the mass and ...
Mar 12, 2025 · To calculate the friction force on an object, you can use the formula: Friction force mass x acceleration. This formula helps determine the force resisting the object's motion due …
How do you calculate forging tonnage? - Answers
Apr 15, 2025 · How do you calculate the capacity of power-press machine? tonnage capacity is equal to area x shear strength of material. calculate area by multipying length and thickness of …
How do you calculate dissolved oxygen in water? - Answers
Feb 7, 2025 · Residual dissolved oxygen (DO) is the amount of oxygen remaining in a water sample after a specific time period during biochemical oxygen demand (BOD) testing.
How do you prepare a solution of 1 M HCl? - Answers
Feb 6, 2025 · To prepare a 1 M (molar) solution of hydrochloric acid (HCl), you would need to dilute concentrated HCl (typically 37% w/w) with water. Measure out the appropriate volume of …