Question

there are 3.0 x 10^22 molecules of sucrose in a sample. how many grams of sucrose is this? The molar mass of C12H22O11 is about 342 g

Answer 1

The amount of sucrose in the sample would be 17 grams

Number of molecules of substances

There are 6.022 x $10^{23}$ molecules in 1 mole of every substance.

3.0 x $10^2^2$ molecules will, therefore, be:

                    1 x 3.0 x $10^2^2$/6.022 x $10^{23}$ = 0.0498 moles

Mass of 0.0498 moles sucrose = 0.0498 x 342 = 17 grams

More on the number of molecules of substances can be found here: brainly.com/question/19481036

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