Mole Calculations

How many moles in 478.5g of CuSO₄?

How many molecules are in 1 mole of chlorine (Cl₂)?

• 6.02x10²³

• 6.02x10²⁴

• 4.21x10²⁵

• 4.21x10²³

How many molecules are in 6 mole of H₂SO₄?

• 6.02x10²³

• 6.02x10¹³⁸

• 5.90x10²⁵

• 3.61x10²⁴

Tags

NGSS.HS-PS1-7

How many moles are in 580g of the compound above?

Tags

NGSS.HS-PS1-7

• 18 g

• 36 g

• 72 g

• 144 g

If you have 3 moles of sodium chloride (NaCl), how many formula units do you have?

Match the following

• An atom, molecule, or formula unit

• Representative Particle

• The space occupied by 1 mole of a substance @ STP (22.4L)

• STP

• The mass of one mole of substance (g/mol)

• Molar Mass

• 0^oC and 1 atm

• Molar Volume

• 6.02 x 10²³

• Avogadro's Number

How many atoms are in 2 moles of helium (He)?

A bag of fertiliser contains 14.52 kg of ammonium nitrate (NH₄NO₃). Calculate the number of moles of ammonium nitrate in the bag of fertiliser.

_{Give your answer to 1d.p}

Tags

NGSS.HS-PS1-7

An aspirin tablet contains 300 mg of acetylsalicylic acid. Calculate the number of moles of acetylsalicylic acid in one aspirin tablet. (Relative formula mass (M_r) of acetylsalicylic acid = 180)

_{Give your answer to 3s.f}