There are 21 atoms, because there are 9 atoms of Carbon 8 atoms of Hydrogen and 4 atoms of Oxygen.
1.50 moles C9H8O4 (9 moles C/1 mole C9H8O4)(6.022 X 1023/1 mole C)= 8.13 X 1024 carbon atoms===================
The chemical formula for acetylsalicylic acid is C9H8O4.
2.6 moles C9H8O4 (9 moles C/1 mole C9H8O4)(6.022 X 10^23/ 1mole C) = 1.4 X 10^25 atoms of carbon
According to Physics teacher, C9H8O4 is commonly known as aspirin.
C7H6O3............+........... C4H6O3 ----> C9H8O4 + CH3COOHsalicylic acid ....................aspirin(Mr=138)......................... (Mr=180)So besically, to work out the percentage atom economy of aspirin you have to divide the useful product (so in that case we are dividing salicylic acid to get the percentage mass of aspirin(of the useful product) by the mass of the reactants (aspirin)and then multiply by 100%to give you the percentage atom economy :)So it is: (138/180) x 100 = 76.6:)))
Caffeine
The molecule C9H8O4 contains 21 atoms.
[1.72*10+23(molecules)] * [180.157 g.mol-1] / [6.02214129*10+23(molecules.mol−1]= 51.45 g C9H8O4
It depends on the mass of the tablet and the molar mass of the aspirin molecule itself, find out the mass in grams of one tablet, divide it by the sum of the number of neutrons and protons in one molecule of aspirin and it will give you the molar mass of the aspirin tablet.
The structural formula of aspirin is HOOC-C6H4-OCOCH3(C9H8O4).
im sorry its 10 to the 21 power
An atom of a chemical element contain only atom.