Moles review

How many moles of Na are there in 15 grams of Na

• 0.65

• 344

• 1.2

• .0007

How many grams are there in 1.7 moles of Cl

• 0.05

• 34

• 60.2

• 18

convert 2.7 g Cl to atoms

• 1.0x10²⁰

• 4.6x10²²

• 46x10²³

• 10x10²¹

What is the molar mass of Sodium sulfide? (Na₂S)

• 15.322 g/mol

• 74.123131 g/mol

• 78.0452 g/mol

• 11 g/mol

3.45x10²³ atoms of F to moles

• 2 moles

• 0.57 moles

• .877 moles

• 14 moles

How many potatoes are in one dozen potatoes?

• 10
• 12
• 2
• 6.02 x 10²³

The number 6.02 x 10²³ is called...

• Einstein's number

• Bohr's number

• Oppenheimer's number

• Avogadro's number

We use the periodic table to calculate...

• mass
• molar mass
• moles

Tags

NGSS.HS-PS1-7

How do we get mass from moles?

• multiply by avogadro's number
• multiply by molar mass
• divide by avogadro's number
• divide by molar mass

A mole of Neon contains
6.02 x 10²³ _____.

• atoms
• formula units
• ions
• molecules

Tags

NGSS.MS-PS1-1