In lab you need to measure out 0.15 mol of C8H16O8C8H16O8 for an experiment. How many grams should you weigh out? Give your answer to 2 decimal spaces.
The molar mass of C8H16O8C8H16O8 is (8 X 12.0) + (16 X 1.008) + (8 X 15.99) + (8 X 12.0) + (16 X 1.008) + (8 X 15.99) = 480.096g
0.15 moles can be calculated by the followin simple folrmula
Number of moles = Mass / Molar mass
Mass = Number of moles X Molar mass
Mass = ?
Number of moles = 0.15
Molar mass = 480.096g
Mass = 0.15 X 480.096 = 72.04g
Hence we should weigh 72.04g.
NOTE: The molecule is repition of two units C8H16O8, this may be a typo mistake. So if the molecule is C8H16O8 then the molar mass is 240.048. In that case substitute 240.048g instad of 480.096g
Get Answers For Free
Most questions answered within 1 hours.