Answer:
a) 213.3 mg/L
b) 62.61 mg/L
c) 0.0225 mg/L
Explanation:
Theoretical oxygen demand (ThOD)is essentially the amount of oxygen required for the complete degradation of a given compound into the final oxidized products
a) Given:
Concentration of acetic acid,![[CH3COOH]](https://tex.z-dn.net/?f=%5BCH3COOH%5D)
= 200 mg/L
Based on the reaction stoichiometry:
mass of 
= 60 g
mass of 
= 2(32) = 64 g
b) Given:
Concentration of ethanol, ![[C2H5OH]](https://tex.z-dn.net/?f=%5BC2H5OH%5D)
= 30 mg/L
Based on the reaction stoichiometry:
mass of 
= 46 g
mass of = 3(32) = 96 g
c) Given:
Concentration of sucrose, ![[C12H22O11]](https://tex.z-dn.net/?f=%5BC12H22O11%5D)
= 50 mg/L
Based on the reaction stoichiometry:
mass of 
= 342 g
mass of = 12(32) = 384 g
In chemistry, neutralization is a chemical reaction in which an acid and a base react quantitatively with each other. In a reaction in water, neutralization results in there being no excess of hydrogen or hydroxide ions present in the solution.
-
New substances called SALTS and water are formed in neutralization reactions.
- For example, hydrochloric acid and sodium hydroxide solution react together to form water and sodium chloride solution. The H+ ions and OH– ions produce the water, and the Na+ ions and Cl– ions produce the sodium chloride, NaCl(aq).
Answer:
1+
Explanation:
the number of protons tells you which element it is in the periodic table, you can notice that there is 1 less electron that then there is protons which means that the element had to give 1 electron away. When you get rid of 1 e- you have 1 proton more that electrons so that's why it's 1+
also the element is Cr
Answer:
Biosphere
The Biosphere --contains all the planet's living things. This sphere includes all of the microorganisms, plants, and animals of Earth. Within the biosphere, living things form ecological communities based on the physical surroundings of an area.
Explanation:
