Gram-formula mass!

Determine the gram-formula mass of H₂O.

• 3 g/mol

• 18 g/mol

• 8 g/mol

• 1 g/mol

What is the definition of a mole?

• 12 of something

• 6.02 x 10^23 of something

• 1 of something

• 1 gram of something

How do you determine the mass of 1 mole of an atom?

• Guess

• Weigh it on the scale

• Look at the atomic number (bottom left)

• Look at the atomic mass number (top left)

What is the unit for gram-formula mass?

• mol

• grams

• g/mol

• mol/g

What is the GFM of NaCl?

• 28 g/mol

• 58.5 g/mol

• 2 g/mol

• 17 g/mol

Determine the GFM of CaCl₂?

• 111 g/mol

• 115.5 g/mol

• 3 g/mol

• 54 g/mol

Determine the gram formula mass of H₂O₂?

• 18 g/mol

• 34 g/mol

• 8 g/mol

• 1 g/mol

Which has more atoms? 1 mole of KCl or 1 mole of LiCl?

• KCl

• LiCl

• they are the same

Which has more mass 1 mol of KCl or 1 mol of LiCl?

• KCl

• LiCl

• they are the same

Which is an empirical formula, H₂O or H₂O₂?

• H₂O

• H₂O₂

Tags

NGSS.MS-PS1-1