Question

Please Help!!! Due tomorrow!!!

1. Which would have a higher mass? (1 mole of lead or 1 mole of iron) Explain (points will be
taken off if you don't explain!)

2. Which would have more atoms? (1 mole of lead or 1 mole of iron) Explain (points will be taken
off if you don't explain!)

3. Which would have a higher mass? (1.65 mole of sucrose, C12H22O11 or 6.23 moles of sodium
acetate) Show all calculations!

4. Why are molar masses used to obtain a quantity of substance rather than simply counting the atoms or molecules?

Answer 1

Answers and explanations:

1) Lead, it is heavier than iron.

2) Lead, since it's heavier, it would have more mass and therefore more atoms.

3) (for sodium) 82.03379 gram x 6.23= 511.070512 grams= 417.05 pounds

(for sucrose) 342.29648(one molar) x .65= 0.4 pound

The sodium would be heavier (not sure if accurate)

4) Because atoms are way too small to count, therefore we use molar masses.