12 terms

Hydrate

Compound that has a specific number of water molecules bound to its atoms

Percent composition

Percent by mass of each element in a compound

Molar mass

mass is grams of one mole of any pure substance

Empirical formula

Formula of a compound with the smallest whole-number mole ratio of the elements

Molecular formula

Specifies the actual number of atoms of each element in one molecule of a compound

Molar mass

The ----- of carbon is equal to carbons atomic mass and has units g/mol

True

One mole of water contains 6.02x10'23 molecules of water

Gram/mole

Si unit of molar mass

40.097g

One mole silicon has mass of 28.086g and carbon has mass of 12.011. What is mass of mole of silicon carbride?

NaBr*2N2O

Sodium bromide dihydrate

Avogadro's number

6.02x10'23

Relationship between mole Avogadro's number and molar mass

Mole is a name for a number which is 6.02x10'23 which is Avogadro's number. Mass in grams of this amount (1mole) equals the molar mass EX) 1 mole of sulfur atom. Atoms = 6.02x10'23. Mass=32g. Which is the molar mass