What is the equivalent of oxygen?
COD is defined as the amount of oxygen equivalents consumed in the chemical oxidation of organic matter by strong oxidant (e.g., potassium dichromate). The COD test consists of refluxing a sample for 2 h in the presence of a known amount of oxidant.
What is the equivalent volume of oxygen?
Explanation: It is already known that 1 mole of the gas( or 32g of O2) is equivalent to 22.4 Litres of the oxygen gas. So, 8g is equivalent to = (22.4/32) × 8 = 5.6 L of the gas. Therefore, the gram equivalent volume of oxygen is 5.6L.
What is the equivalent weight of CO2?
One CO2 molecule is reacting with 2 hydroxyl ions. Thus n-factor is 2 and its equivalent weight is 44/2 = 22g/mole.
What is thermal equivalent of oxygen?
The energy equivalent for converting rate of oxygen consumption into rate of heat production (Q ox cal mg-1 oxygen consumed) is 3.53 cal mg-1 for carbohydrate oxidation, 3.28 cal mg-1 (range 3.22-3.32) for fat oxidation.
What is the equivalent weight in water of oxygen?
Oxygen atomic weight is 16.0 and adding 2 and 16, we will get 18.18 is the equivalent weight of water.
How do you calculate equivalent?
To calculate the equivalent mass of a base, simply divide the molar mass of the base by the number of hydroxyl groups. Take, for example, calcium hydroxide Ca(OH)₂. A few simple calculations yield an equivalent of 37g/mol. To find the equivalent of an acid, divide the acid’s molar mass by the number of protons.
How do you find equivalent numbers?
It is defined as the number of moles of solute present in one litre of solution.
- Molarity (M) =
- Number of moles of solute =
- Hence M.
- Hence Number of moles of solute.
- Number of equivalents of solute =
- Hence N.
- Hence Number of equivalents of solute = = N × V (in litre)
- Equivalents mass =
How do you find the equivalent volume?
Answer: The gram equivalent volume of O2 at STP is 5.6 L. So, 8g is equivalent to = (22.4/32) × 8 = 5.6 L of the gas. So the gram equivalent volume of oxygen is 5.6L.
What does CO2 equivalent mean?
Carbon dioxide equivalent
Carbon dioxide equivalent or CO2e means the number of metric tons of CO2 emissions with the same global warming potential as one metric ton of another greenhouse gas, and is calculated using Equation A-1 in 40 CFR Part 98.
What is meant by equivalent weight?
Definition of equivalent weight : the mass of a substance especially in grams that combines with or is chemically equivalent to eight grams of oxygen or one gram of hydrogen : the atomic or molecular weight divided by the valence.