24
12*10 molecules
20 hydrogen 10 oxygen
In photorespiration, each molecule of serine produced requires one molecule of ribulose bisphosphate (RuBP) to enter the cycle. Since each RuBP can ultimately lead to the production of one molecule of serine, producing 20 molecules of serine would require 20 molecules of RuBP. Therefore, 20 molecules of RuBP are needed to produce 20 molecules of serine in photorespiration.
4.2x10^20
200
Five molecules of H2SO4 contains 20 atoms of Oxygen
Avagadro's number is the amount of molecules in a mole. This is 6.022x10^23 molecules. There will be 6.022x10^20 molecules in a millimole and 6.022x10^14 in a nanomole. Therefore, the difference between these is how many molecules there are in the difference. This gives you approx 6.021994x10^20 molecules. This is limited by the amount of significant figures for avagadros number that I know of.
0.2 moles C6H12O6 x 6.02x10^23 molecules/mole = 1.2x10^23 molecules of C6H12)61.2x10^23 molecules C6H12O6 x 6 molecules "O"/molecule C6H12O6 = 7.2x19^23 molecules "O"
H2O2 has four nuclei (atoms) in one molecule. Therefore, it has 20 'atoms' in 5 molecules. H2O has three nuclei in one molecule. Therefore, there are 15 nuclei in 5 molecules of water. 20-15 = 5 Ans: 5!
When 20 monomers are condensed, 19 water molecules are formed. This is because each condensation reaction between two monomers results in the release of one water molecule. Therefore, to link 20 monomers together, 19 condensation reactions are needed, resulting in the formation of 19 water molecules.
To determine the number of molecules in 45.8 mg of C2H4, we first calculate the number of moles using the molar mass of C2H4 (28.05 g/mol). Then we use Avogadro's number (6.022 x 10^23 molecules/mol) to find the number of molecules, which is approximately 1.23 x 10^20 molecules.
Approximately 106 ATP molecules can be obtained from completely oxidizing a fatty acid with 20 carbons through beta-oxidation and the citric acid cycle. Each round of beta-oxidation generates 4 ATP molecules, and each round of the citric acid cycle generates 12 ATP molecules.
Since there are 10 water molecules with this species there are 20 atoms of H.