# How many moles is 2 80 x10 24 atoms silicon?

Contents

## How many moles is 2.80 x10 to the 24th atoms of silicon?

6.02×10^23 atoms are present in 1 mole of Si. Therefore 2.80×10^24 atoms are present in = 2.8×10^24/6.02×10^23 = 4.65 moles of Si.

## How many moles is atoms of silicon?

From the Periodic Table we find Si has a gram molecular weight of 28.1 g/mole. Therefore, the number of moles of Si here is 11.8g/28.1g/mol = 0.42 moles Si.

## How many moles is 5.75 x10 24 atoms?

How many moles are equivalent to 5.75×1024 atoms of Al? 9.55 moles contain 5.75 x 1024 atoms of Al.

## How do you convert number of atoms to moles?

Converting between Moles and Atoms

1. Avogadro’s number is a very important relationship to remember: 1 mole = 6.022×1023 6.022 × 10 23 atoms, molecules, protons, etc.
2. To convert from moles to atoms, multiply the molar amount by Avogadro’s number.

## How much atoms are in a mole?

The value of the mole is equal to the number of atoms in exactly 12 grams of pure carbon-12. 12.00 g C-12 = 1 mol C-12 atoms = 6.022 × 1023 atoms • The number of particles in 1 mole is called Avogadro’s Number (6.0221421 x 1023).

## How many atoms are in 2 moles of silicon?

2⋅6.02⋅1023≈1.2⋅1024 silicon atoms.

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