6. Chemical Composition

Obtain a bottle of aspirin and identify the amount of active ingredient (acetylsalicylic acid, C9H8O4) per tablet.How many moles of aspirin are in one tablet?

Using the models of the molecules (black = C, white = H, yellow = S, green = Cl), determine each of the following for models of compounds 1 and 2: (7.1, 7.2, 7.3)1.

2.

c. number of moles in 10.0 g

Using the models of the molecules (black = C, white = H, yellow = S, red = O) determine each of the following for models of compounds 1 and 2: (7.1,7.2, 7.3)1.

2.

c. number of moles in 10.0 g

Find the mass in atomic mass units of the following:a. 1 O atom, with a mass of 2.66 * 10^-23 gb. 1 Br atom, with a mass of 1.31 * 10^-22 g

Caffeine has the formula C8H10N4O2. If an average cup of coffee contains approximately 125 mg of caffeine, how many moles of caffeine are in one cup?

Ammonium sulfate, (NH₄)₂SO₄, is used in fertilizers to provide nitrogen for the soil. (7.1, 7.2)b. How many H atoms are in 0.100 mole of ammonium sulfate?

What is a mole?

Pyrite, also known as fool's gold, is used commercially to produce SO2 used in the production of paper products.How many moles of SO2 can be produced from 1.0 kg of pyrite?

How many O atoms of mass 15.99 amu are in 15.99 g of oxygen?

What is Avogadro's number?

How many moles of ions are in 1.75 mol of K2SO4?

Which weighs more, 5.00 g or 0.0225 mol of acetaminophen (C8H9O2)?

Ammonium sulfate, (NH₄)₂SO₄, is used in fertilizers to provide nitrogen for the soil. (7.1, 7.2)c. How many moles of ammonium sulfate contain 7.4 x 10²⁵ atoms of N?

What is the mass (in grams) of 6.02 * 10^23 atoms of Carbon-12?