Respuesta :

anfabba15

Answer:

Option a. 4 g of He

Explanation:

6.02×10²³ is the Avogadro's number. The amount of units that corresponds to 1 mol, in this case the units are molecules.

Let's find out which mass corresponds to 1 mol (mass / molar mass)

a. 4g / 4g/mol = 1 mol He

b. 14g / 6.94 g/mol = 2.01 mol Li

c. 80g /159.8 g/mol = 0.5 moles Br₂

d. 4g / 2g/mol = 2 mol H₂

jasminetilley

Answer:

4.0 g of He

Explanation:

Which sample contains a total of 6.0 x 1023 particles?

Select one:

a. 4.0 g of H2

b. 80 g of Br2

c. 4.0 g of He

d. 14 g of Li

It's not 4.0 g of H2

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