A sample of glucose, C6H12O6, contains 5.1x10623. a.)How many atoms of hydrogen does it contain? b.)How many molecules of glucose does it contain? please help me. :(
Certainly! I'd be happy to help you with that. To find the number of atoms of hydrogen and molecules of glucose in a given sample, we'll need to use Avogadro's number and the chemical formula of glucose.
a) To determine the number of atoms of hydrogen in glucose, we need to examine the chemical formula C6H12O6. From this formula, we can see that there are 12 hydrogen atoms (H12) in one molecule of glucose.
Now, we need to convert the given amount 5.1x10^23 to molecules of glucose. Avogadro's number, which represents the number of particles (atoms, molecules, etc.) in one mole of a substance, is approximately 6.022x10^23.
So, the first step is to calculate the number of moles of glucose in the given sample:
Number of moles = (Given number of particles) / (Avogadro's number)
Number of moles = (5.1x10^23) / (6.022x10^23)
Number of moles ≈ 0.847 mol
Since there are 6 hydrogen atoms in one molecule of glucose, we can multiply the number of moles by the number of hydrogen atoms in one molecule:
Number of hydrogen atoms = (Number of moles) x (Number of hydrogen atoms per molecule)
Number of hydrogen atoms = 0.847 mol x 12 = 10.167 ≈ 10 atoms of hydrogen
Therefore, the sample of glucose contains approximately 10 atoms of hydrogen.
b) To determine the number of molecules of glucose in the sample, we will use the calculated number of moles of glucose, which is approximately 0.847 mol.
The number of molecules can be found by multiplying the number of moles by Avogadro's number:
Number of molecules = (Number of moles) x (Avogadro's number)
Number of molecules = 0.847 mol x 6.022x10^23 = 5.108x10^23 molecules
Therefore, the sample of glucose contains approximately 5.108x10^23 molecules of glucose.
I hope this explanation helps you understand the process of how to calculate the number of atoms of hydrogen and molecules of glucose in a given sample using Avogadro's number and the chemical formula.