What is the mass in grams of 1.501023 atoms Mg?

Answer 1

This can be found using one of the most important constants for chemistry: Avogadro's number.

According to wikipedia, the standard atomic weight of magnesium is 24.3050 grams per mole. Using Avogadro's number, we know there's 6.0221415 × 1023 atoms per mole, so if you divide the standard atomic weight of magnesium by Avogadro's number, you can get number of grams per atom of magnesium (i.e. the mass of a single magnesium atom in grams).

(24.3050 g/mole) / (6.0221415 x 1023 atoms/mole) = 4.03564 g/atom

Answer 2

For this you need the Atomic Mass of Mg. Take the number of moles and multiply it by the atomic mass. Divide by one mole for units to cancel.

.253 moles Mg × (24.3 grams) = 6.15 grams Mg

Answer 3

By definition, one mole would be the same as the atomic mass. You take the number of moles and multiply it by the atomic mass (divide by one mole for units to cancel). So if you have just 1 mole, the number of grams will just be the atomic mass. Magnesium's atomic mass is 24.31 grams.

Answer 4

For this you need the atomic mass of Mg. Take the number of moles and multiply it by the atomic mass. Divide by one mole for units to cancel.

.253 moles Mg

Answer 5

1.50 X 1023 atoms of magnesium (1 mole Mg/6.022 X 1023)(24.31 grams/1 mole Mg)

= 6.06 grams magnesium

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Answer 6

The mass in grams of 0,250 moles of Mg is 6,07625 g.