1. Ibuprofen, C13H18O2, is the active ingredient in many non-prescription pain relievers.

(a) If the tablets in a bottle contain a total of 13 g of ibuprofen, how many moles of ibuprofen are in the bottle?

Work

N = mass/mr

N=13/206.29g

N=0.0630n

(b) How many atoms of ibuprofen are in the bottle?

Question

Marquise Rubio

Biology

24 November, 21:12

1. Ibuprofen, C13H18O2, is the active ingredient in many non-prescription pain relievers.

(a) If the tablets in a bottle contain a total of 13 g of ibuprofen, how many moles of ibuprofen are in the bottle?

Work

N = mass/mr

N=13/206.29g

N=0.0630n

(b) How many atoms of ibuprofen are in the bottle?

+5

Answers (1)

Know the Answer?

Sidney Hickman · Answer 1

A) Moles

n = grams / molar mass

molar mass of C13H18O2:

13*12g/mol + 18*1g/mol + 2*16g/mol = 206 g/mol

n = 13 g / 206 g/mol = 0.063 mol

b) number of atoms = Avogadro number * n = 6.022*10^23 atom/mol * 0.063 mol = 0.379 * 10^23 atoms = 3.8 * 10^22 atoms

1. Ibuprofen, C13H18O2, is the active ingredient in many non-prescription pain relievers.(a) If the tablets in a bottle contain a total of 13 g of ibuprofen, how many moles of ibuprofen are in the bottle?WorkN = mass/mrN=13/206.29gN=0.0630n(b) How many atoms of ibuprofen are in the bottle?