# How many aluminum atoms are there in a 10 g aluminum spoon?

June 29, 2021 | education

| m (Al) = 10 g.

Let’s determine the number of aluminum atoms. We write down the solution.

We use the following formula.

N = n * Na.

Where N is the number of atoms.

n is the amount of substance.

Na – Avogardo’s number, constant equal to 6.02 * 10’23.

n = m / M.

Where m is the mass of the substance.

M is the molar mass of the substance.

M (Al) = 27 g / mol.

n (Al) = 10/27 = 0.37 mol

N = 0.37 * 6.02 * 10’23 = 2.22 * 10’23 atoms.

This means that the number of aluminum atoms is 2.22 * 10’23.

Answer: the number of aluminum atoms is 2.22 * 10’23.

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