One cup tea contains how many positive charge and how many negative charge
It is about 250ml, or 250grams, or 250/18 moles.
Each mole has 6.02*10^23 molecules.
each molecule has (H2O) 18+ charges (Protons) and 18 - charges (electrons).
Answer: (250/18)*Avagrado's Number*18 positive, and the same number negative.
"tea leaves can also accumulate trace metal ions, such as cadmium 1, 5-9, cobalt 5-8, lead 1, 6-8, nickel 1, 6, 7, 9, copper [1, 5-7, 9, and aluminium 1, 6, which can be a threat to the human health" these are only metals, so no negative charges. metals form positive ions as they lose electrons
trace element/amount is one whose average concentration is less than 100 parts per million (ppm) measured in the atomic count or less than 100 micrograms per gram.
cobalt (2.5+ is average charge)
lead (3+ is average charge)
nickel(1.5+)
copper(2+)
cadmium(2+)
aluminium(3+)
assume each element is present as 10 micrograms per gram
=0.00001g of each
so i can only be bothered doing this with weight of aluminium, but it'll give a close enough answer
2.2277778x10^22 al ions in 1 gram (2.2277778x10^22)x3 (al3+) = positive charges in 1 gram = 6.6833333x10^22
this is a close enough idea a bit too large as the other metals have lower average charges, but not too much lower so as to give a wildly different result.
divide that by the viable value for a trace amount per gram = 1/0.00001=100000 so divide by 100000 =6.6833333x10^17
multiply this by the weight of an average cup of tea (minus the cup)
(6.6833333x10^17)x200 = 1.3366667x10^20
therefore a 200 gram cup of tea contains 1.3366667x10^20 positive charges.
To determine the number of positive and negative charges in a cup of tea, we need to understand the composition of tea.
Tea is mostly made up of water, which consists of neutral molecules composed of two hydrogen atoms and one oxygen atom (H2O). In this form, water does not possess any net positive or negative charge.
However, when tea is brewed, it can contain various other compounds present in tea leaves, such as tannins, polyphenols, and flavonoids. These compounds can ionize, meaning they can gain or lose electrons and produce charged particles called ions.
Positive charges are typically associated with cations, while negative charges are associated with anions. Cations result from the loss of electrons, giving them a positive charge, while anions result from the gain of electrons, giving them a negative charge.
To determine the number of positive and negative charges in a cup of tea, you would need to analyze the specific types and concentrations of ions present in the tea. This would require specialized laboratory tests, such as spectroscopy or ion chromatography, which are beyond the scope of a simple explanation.
In summary, without specific knowledge about the type and concentration of ions present in a cup of tea, it is difficult to determine the exact number of positive and negative charges. So, a general answer cannot be provided without further analysis.