Answer to Question #144292 in General Chemistry for Mackenzie

Question

How many molecules of sucrose (C12H22O11, molar mass = 342.30 g/mol) are contained in 14.3 mL of 0.140 M sucrose solution?

Answer 1

140 M = moles / .0143 L

.140 * .0143 L = 2.002 moles C12H22)11

2.002 moles C12H22)11 * 6.022 x 10^23 molecules / 1 mol C12H22 O 11 =

1.21 x10^24 molecules but the answer is

1.21 x 10 ^ 21