How many moles are present in 16.2 g of lead?

Hello!

To find the number of moles present in 16.2 grams of lead, we need to know how much one mole of lead weighs.

1 mole is equal to the atomic mass of an element, so, 1 mole of lead is equal to about 207.2 grams.

To find that, divide the given amount of lead by 1 mole of lead (207.2 grams).

16.2 grams / 207.2 grams ≈ 0.07818

Therefore, the amount of moles present in 16.2 grams of lead is about 0.078 moles. (round to amount of sigfigs: 0.0782 moles)

in 1783 cavendish was working with his hydrogen gas and found that when he burned it and condensed the vapor it was water. this was very significant since it disproved the greek theory of elements completely since water was not a simple substance but the product of two gases. it was lavoisier who hearing of the experiment gave cavendish's gas the name hydrogen ("water-producer") and added that hydrogen burned by combining with oxygen and that water was a hydrogen-oxygen combination.

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