Mole conversions

How many molecules are in 2.5 mol of NaCl?

• 1.51x10²³
• 146
• 4.15
• 1.51x10²⁴

Tags

NGSS.HS-PS1-7

How many molecules of sugar (C₆H₁₂O₆) are in a mole?

• 24 molecules
• 180 molecules
• 180 g
• 6.02 x 10²³ molecules

How many grams are in 1.2 x 10²⁴ molecules of CO?

• 28 grams
• 56 grams
• 6.02 grams
• 1.2 grams

Tags

NGSS.HS-PS1-7

How many steps are in a gram to mole conversion?

• 1
• 2
• 3
• 4

What is the molar mass of table salt (NaCl)?

• 116.886 g/mol
• 35.453 g/mol
• 22.990 g/mol
• 58.443 g/mol

What are the units for molar mass?

• grams
• amu
• grams/mole
• liters

(0901) Avogadro’s number is:

• 6.02 x 10²²

• 6

• 6.02 x 10²³

• 3.01 x 10²³

(0902) Which compound has the smallest molar mass?

• CO

• CO₂

• H₂O

• H₂O₂

(0903) How many moles are in 16.94 g of water? (hint: do you know the formula for water?)

• 16.94 moles

• 0.9403 mole

• 305.2 moles

• 1.063 moles

Tags

NGSS.HS-PS1-7

Which conversion factor should be used for the following question " How many molecules are there in 4.00 moles of glucose, C₆H₁₂O₆? 

• 1 mole = 78.12 g
• 1 mole = 22.4 L 
• 1 mol = 6.02x 10²³ particles 
• more than one