Sample of glucose contains 1.270x10^21 of carbon atoms, how many moles of glucose does it contain
To determine the number of moles of glucose in the sample, we first need to calculate the molar mass of glucose.
Glucose has the chemical formula C6H12O6. Therefore, the molar mass of glucose can be calculated as follows:
(6 x molar mass of carbon) + (12 x molar mass of hydrogen) + (6 x molar mass of oxygen)
= (6 x 12.01 g/mol) + (12 x 1.008 g/mol) + (6 x 16.00 g/mol)
= 72.06 g/mol + 12.096 g/mol + 96.00 g/mol
= 180.156 g/mol
Next, we can calculate the number of moles of glucose in the sample using the given number of carbon atoms.
1.270x10^21 carbon atoms x (1 mole of glucose / 6 moles of carbon atoms)
= 1.270x10^21 carbon atoms x (1/6)
= 0.21166 x 10^21 moles of glucose
Therefore, the sample of glucose contains 0.21166 x 10^21 moles of glucose.