1. How many atoms are present in 4.0 mol of sodium?

2. Convert [tex]3.01 \times 10^{23}[/tex] atoms of silicon to moles of silicon.

Part 1: If 1 mol = 6.022 x 10^23 atoms of anything, including Na, then,
4.0 mol Na = 4 x 6.022 x 10^23 atoms Na = 2.4 x 10^24 atoms Na
Part 2: 3.01E23 / 6.022E23 and the answer comes out to .49983394 you would then round this to .500 with significant figures. Hope I helped. :)

Answered by Joel0920 | 2024-06-10

1=2.4*10^24 atoms NA
2= .49983394 round this to .500
Hope this helps!

Answered by Felix101 | 2024-06-10

In 4.0 moles of sodium, there are approximately 2.41 × 1 0 24 atoms. From 3.01 × 1 0 23 atoms of silicon, you get approximately 0.50 moles. These calculations utilize Avogadro's number to convert between moles and atoms.
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Answered by Joel0920 | 2024-12-26