What is its mass in mg? Express your answer using two significant figures.
2.2 x 10^17 molecules divided by 6.022 x 10^23 molecules/mol = moles of C12H22O11
moles of C12H22O11 times molar mass of C12H22O11 = grams of C12H22O11
grams of C12H22O11 times (1000 mg / g) = mg of C12H22O11 (which you will rond to two sig figs)
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2.2 x 10^17 molecules divided by 6.022 x 10^23 molecules/mol = moles of C12H22O11
moles of C12H22O11 times molar mass of C12H22O11 = grams of C12H22O11
grams of C12H22O11 times (1000 mg / g) = mg of C12H22O11 (which you will rond to two sig figs)