Unit 9 - The Mole

I still need the FORMULA, KRABS! (General Only)

100

Which type of compounds are the only ones to use prefixes?

Molecular (NM + NM)

200

The Roman numerals in a transition metal's name correspond with what?

The metal's oxidation number

300

Write the formulas for the following three compounds:

Carbon Monoxide

Dicarbon Hexoxide

Tetracarbon Decoxide

CO; C₂O₆; C₄O₁₀

400

Write the formula for the following three compounds:

Copper II Nitrate

Copper II Sulfate

Copper II Phosphate

Cu(NO₃)_2; CuSO₄; Cu₃(PO₄)₂

500

Write the formula for the following three compounds:

Hydrosulfuric Acid

Sulfurous Acid

Sulfuric Acid

H₂S; H₂SO₃; H₂SO4

Moley Moley Moley Mole.

100

This is a unit that quantifies the amount of any substance.

A mole.

200

This is the value of Avogadro's number

6.02 x 10²³

300

If you have 1 mole of a pure element (ex: Na), you would have 6.02 x 10²³ of what unit?

Atoms

400

If you have 1 mole of a molecular compound (ex: H₂O), you would have 6.02 x 10²³ of what unit?

Molecules

500

If you have 1 mole of an ionic compound (ex: NaCl), you would have 6.02 x 10²³ of what unit?

Formula Units

Make sure you're flossing.

100

This is the amount of grams of a substance found in one mole.

The molar mass.

200

How is the molar mass of any compound, molecule, or acid found?

Adding the individual molar masses of each component element.

300

What is the MM of potassium hydroxide?

56.11 g/mol

400

What is the MM of tetrasulfur octoxide?

256.28 g/mol

500

What is the MM of hydronitric acid?

17.04 g/mol

1 step, 2 step, 3 step, 4.

100

How many molecules are in 1.00 mole of C₁₂H₂₄O₁₆?

6.02 x 10²³

200

How many grams are in 2.50 moles of Lithium Chloride?

106 g

300

How many moles are there in 72.54 g of calcium fluoride?

0.9290 mol

400

How many grams of sodium acetate are there in 7.91 x 10²³ formula units?

108 g

500

How many molecules are there in 500.0 g of sulfuric acid?

3.069 x 10²⁴ molecules

Compose yourself.

100

If a 100.0 g compound is 54.00% carbon, how many grams of carbon are there?

54.00 g

200

What percent of water is hydrogen?

11.21%

300

What percent of carbon dioxide is oxygen?

72.71%

400

What is the percent composition of both elements in sodium sulfide? 

Sodium: 58.91%

Sulfur: 41.09%

500

What is the percent composition of all elements in nitric acid?

Hydrogen: 1.60%

Nitrogen: 22.23%

Oxygen: 76.17%

The Empire Strikes Back (Pre-AP Only)

100

The most simplified version of a chemical formula is called:

The empirical formula

200

The empirical formula for C₆H₁₂O₆ would be:

CH₂O

300

A sample contains 26.5g K, 35.41g Cr, and 38.03g O. Find its empirical formula.

K₂Cr₂O₇

Hi Drate, I'm Dad. (Pre-AP Only)

100

This is the substance burned off by heating an ionic compound hydrate

Water

200

What is the name of the following ionic compound hydrate?

CoF₂ x 4H₂O

Cobalt II Fluoride Tetrahydrate

300

What is the formula for the following ionic compound hydrate?

Nickel III Cromate Nonahydrate

Ni₂(CrO₄)₃ x 9H₂O