MOLE CONCEPT QUIZ

What is the molar mass of carbon?

• 12.0 g
• 12.0 mol
• 12.0 amu
• 12.0 g/mol

A mole of Neon contains
6.02 x 10²³ _____.

• atoms
• formula units
• ions
• molecules

Tags

NGSS.HS-PS1-7

The number 6.02 x 10²³ is called...

• Obama's number
• Bohr's number
• Trump's number
• Avogadro's number

Molar mass is in units of ________.

• grams
• grams/mole
• mole
• moles/gram

Calculate the number of moles of 0.25 g of H₂SO₄?

• 2.00 x 10^-3 mol
• 2.35 x 10^-3 mol
• 2.55 x 10^-3 mol
• 3.00 x 10^-3 mol

How many moles are there in 8.50 x 10²⁴ molecules of sodium sulfate, Na₂SO₄? (molecules to mole)

• 1.40 moles
• 14.1 moles
• 51.2 moles
• 5.12 x 10⁴⁸ moles

How many grams of NaCl (molar mass = 58.45g/mol) are present in 11.00 moles? (moles to grams)

• 0.4500 g
• 156.6 g
• 331.0 g
• 642.9 g

What is the mass of 6.02 x 10²³ platinum atoms? Round to the nearest hundredths place.

• 30.97 g

• 106.42 g

• 140.91 g

• 195.09 g

A student needs 65.0 g of copper(II) chloride for an experiment. How many atoms of copper is this?

• 2.91 x 10^23 atoms

• 3.91 x 10^25 atoms

• 2.35 x 10^23 atoms

• 4.70 x 10^23 atoms

If one Monster energy drink contains 0.16 g of caffeine, how many moles of caffeine do we consume when we drink 1 can? The chemical formula for caffeine is C₈H₁₀N₄O₂.

• 194.19 moles

• 1.07 moles

• 0.00082 moles

• 1213.69 moles