You need to measure out .23 mol of C8H16O8 for an experiment. How many grams would you need to weigh out?

1 Answer

Answer:

55.2497g #C_8##H_16##O_8#

Explanation:

#.23mol# #C_8##H_16##O_8#

First, let's find the molar mass of #C_8##H_16##O_8# by calculating the mass of each element.

Carbon weighs 12.011 grams, and we have 8 of those. Multiply.

#96.088#g Carbon

Hydrogen weighs 1.008 grams, and we have 16 of those. Multiply.

#16.128#g Hydrogen

Oxygen weighs 15.999, or 16g, and we have 8 of those. Multiply.

#128#g Oxygen

Add the atomic masses.

#240.216#g is the molar mass of #C_8##H_16##O_8#.

Now, to find the number of grams needed, set up a proportion.

#.23mol# #C_8##H_16##O_8# #*# #(240.216/1)#, where 240.216 represents the molar mass of the substance and 1 represents the # of moles. Divide accordingly. Moles on top and bottom cancel out.

Answer: 55.2497g #C_8##H_16##O_8#