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How do you calculate atoms of an element?

Answer 1

You can approach this question in two different ways. Firstly, you can ask, "How do you calculate the atoms of an element within a given compound?"

Let us use water as an example. Examine the chemical formula of water, #H_2O#. The formula tells that the subscript 2 means that there are two hydrogen atoms in one water molecule and one oxygen atom in one water molecule. The subscript is not normally written; it is implied.

There are two ways to approach this question: "How can the number of atoms in an element be determined given a number of moles?

A mole is equivalent to 6.02 x 10^23 atoms, which is Avogadro's number.

If you look at the atomic weight of hydrogen, one mole equals the atomic weight as well. So that means in 1.0 grams of hydrogen, you have #6.02 x 10^23# hydrogen atoms.

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Answer 2

Cooper Alexander

To calculate the number of atoms of an element, use Avogadro's number (6.022 × 10^23 atoms/mol) and the given amount of the element in moles. Multiply the number of moles by Avogadro's number to find the number of atoms.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.