A sample of glucose C6H12O6 contains 2.03x10^21 atoms of carbon. how many atoms of hydrogen does it contain?
mole of H= 6.02x10^23/2.03x10^21?
i don't know if my formula is right and i also don't know where to get the mole of H. please help me understand this problem
how many molecules of glucose does it contain? i don't know what to doooo
To find the number of atoms of hydrogen in a sample of glucose, you need to consider the ratio of carbon to hydrogen in the molecule. The molecular formula of glucose (C6H12O6) tells us that there are 6 atoms of carbon and 12 atoms of hydrogen in each molecule of glucose.
Given that the sample you have contains 2.03x10^21 atoms of carbon, you can use this information to find the number of atoms of hydrogen.
The ratio of carbon to hydrogen in glucose is 6:12, which can be simplified to 1:2. This means that for every atom of carbon, there are two atoms of hydrogen.
Therefore, the number of atoms of hydrogen can be calculated as follows:
Number of atoms of hydrogen = 2 × Number of atoms of carbon
Number of atoms of hydrogen = 2 × 2.03x10^21
Number of atoms of hydrogen = 4.06x10^21
So, your sample of glucose contains 4.06x10^21 atoms of hydrogen.
Now, to calculate the number of molecules of glucose in the sample, you need to use Avogadro's number, which tells us the number of atoms in a mole of a substance.
1 mole of any substance contains 6.02x10^23 entities (atoms, molecules, etc.). This is known as Avogadro's number.
To find the number of molecules of glucose, you can use the relationship:
Number of molecules = Number of atoms of carbon / Avogadro's number
Therefore, the number of molecules of glucose can be calculated as follows:
Number of molecules of glucose = 2.03x10^21 / 6.02x10^23
Number of molecules of glucose ≈ 0.003375 mol
So, your sample of glucose contains approximately 0.003375 moles of glucose molecules.
To determine the number of atoms of hydrogen in a sample of glucose, we can use the information that 1 molecule of glucose (C6H12O6) contains 6 atoms of carbon and 12 atoms of hydrogen.
First, let's find the number of moles of carbon in the sample. We are given that there are 2.03x10^21 atoms of carbon.
To convert from the number of atoms to moles, we need to divide by Avogadro's number, which is approximately 6.02x10^23.
Mole of C = 2.03x10^21 atoms of C / 6.02x10^23 atoms/mol = 0.003376 moles of C
Since there are 6 atoms of carbon in one molecule of glucose, we can determine the number of moles of glucose by dividing the number of moles of carbon by 6.
Mole of glucose = 0.003376 moles of C / 6 = 0.0005627 moles of glucose
Now, let's find the number of atoms of hydrogen in the sample of glucose.
Since there are 12 atoms of hydrogen in one molecule of glucose, we can calculate the number of atoms of hydrogen by multiplying the number of moles of glucose by Avogadro's number.
Number of atoms of H = 0.0005627 moles of glucose * 6.02x10^23 atoms/mol = 3.39x10^20 atoms of H
So, the sample of glucose contains approximately 3.39x10^20 atoms of hydrogen.
To determine the number of molecules of glucose in the sample, we can use Avogadro's number to convert from the number of moles of glucose to the number of molecules.
Number of molecules of glucose = 0.0005627 moles of glucose * 6.02x10^23 molecules/mol = 3.39x10^20 molecules of glucose
Therefore, the sample of glucose contains approximately 3.39x10^20 molecules of glucose.
looking at the formula, there are two hydrogens for every carbon
so ... 4.06x10^21 atoms of hydrogen
there are 6 carbon atoms in each glucose molecule, so the number of molecules is ... 2.03x10^21 / 6