Answer:
There are ~1.03 x 10^23 hydrogen atoms in 5.23g of glucose
Step-by-step explanation:
The molecular formula of glucose is C6H12O6. To determine the number of hydrogen atoms in 5.23g of glucose, we need to use the Avogadro's constant and the molar mass of glucose.
The molar mass of glucose is:
C: 6 x 12.01 g/mol = 72.06 g/mol
H: 12 x 1.01 g/mol = 12.12 g/mol
O: 6 x 16.00 g/mol = 96.00 g/mol
Total molar mass of glucose = 180.18 g/mol
Using the formula:
Number of moles = mass ÷ molar mass
Number of moles of glucose in 5.23g = 5.23 g ÷ 180.18 g/mol = 0.029 moles
Since there are 6 hydrogen atoms in one molecule of glucose, we can find the total number of hydrogen atoms in 5.23g of glucose by multiplying the number of moles of glucose by Avogadro's constant and by 6:
Number of hydrogen atoms = 0.029 moles x 6.022 x 10^23 atoms/mole x 6 atoms/molecule = 1.03 x 10^23 hydrogen atoms.
Therefore, there are approximately 1.03 x 10^23 hydrogen atoms in 5.23g of glucose.