Question

How many moles of sodium atoms are present in 2.3g na?

Answer 1

Answer:

One mole atoms of Na weigh 23 grams

Explanation:

6.022 x 10^22 = 2.3 g

Answer 2

Answer:

Molecular mass of Sodium is 23 u.

So, 23 g of sodium is equal to 1 mole.

Number of Moles = Mass of substance/Mass of one mole

Number of mole in 2.3 g = 2.3 / 23

                                      = 0.1 mole.

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