Molexamination =)

What is relative molecular mass of HNO₃ ?

• 60

• 63

• 62

• 36

What is relative molecular mass of Cu(NO₃)₂.3H₂O ?

• 194

• 242

• 210

• 246

What is the molar mass of NO?

• 27 g/mol

• 15 g/mol

• 30 g/mol

• 14 g/mol

What is the molar mass of H₂O ?

• 18 g/mol

• 16 g/mol

• 17 g/mol

• 20 g/mol

What is the difference between molar mass of molecule and relative molecular mass of molecule?

• Relative molecular mass has No unit

  Molar Mass has unit of g/mol

• Molar mass has No unit

  Relative molecular mass has unit of g/mol

What is the mass of 4 mole of Ca(NO₃)₂ ?

• 496 g

• 408 g

• 164 g

• 656 g

What is the mass of 2 moles of chlorine molecule?

• 71 g

• 142 g

• 35.5 g

• 17.8 g

What is mass of 2 moles of CuSO₄.5H₂O ?

• 500 g

• 250 g

• 125 g

• 62.5 g

Calculate the number of moles of H₂SO₄ in 147 g of H₂SO₄

• 0.5 mol

• 1 mol

• 1.5 mol

• 2 mol

Calculate the number of moles of Argon (Ar) in 10 g of Argon (Ar)

• 4 mol

• 0.458 mol

• 0.25 mol

• 0.917 mol