To determine the number of moles of glucose in a 30g sample, we need to first calculate the molar mass of glucose (C6H12O6).
Molar mass of glucose:
6 mol of carbon (6 x 12.01 g/mol) = 72.06 g
12 mol of hydrogen (12 x 1.01 g/mol) = 12.12 g
6 mol of oxygen (6 x 16.00 g/mol) = 96.00 g
Total molar mass of glucose = 72.06 g + 12.12 g + 96.00 g = 180.18 g/mol
Now, we can calculate the number of moles in a 30g sample of glucose:
Number of moles = mass of sample / molar mass
Number of moles = 30g / 180.18 g/mol
Number of moles ≈ 0.17 moles
Therefore, the chemist will use approximately 0.17 moles of glucose in the experiment.
Use the table of molar masses to complete the question. Do NOT use any other values except the ones provided in the table below.
Element Molar Mass (g/mol)
carbon 12.01
hydrogen 1.01
oxygen 16.00
A chemist will use a sample of 30g of glucose ( C6H12O6
) in an experiment. Determine the number of moles of glucose the chemist will use based on the molar mass values provided in the table. (Your value should be rounded to 2 decimal places; i.e. the hundredths place).
(2 points)
The number of moles the chemist will use is:
moles.
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