6. Chemical Composition

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

Calcium citrate, Ca(C6H5O7)2(MW = 498.5 amu), is a common dietary supplement to provide calcium needed for strong teeth and bones.What mass of calcium citrate would be needed to provide the recommended daily intake of calcium?

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?

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?

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

Ibuprofen, an anti-inflammatory drug in Advil, has the formula C₁₃H₁₈O₂ (7.1, 7.2, 7.3) d. How many moles of ibuprofen contain 1.22 x 10²³ atoms of C?

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

What is the mass (in amu and in grams) of a single atom of Carbon-12?

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?

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?

Ammonium sulfate, (NH₄)₂SO₄, is used in fertilizers to provide nitrogen for the soil. (7.1, 7.2)a. How many formula units are in 0.200 mole of ammonium sulfate?