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victus00 [196]
3 years ago
10

If you could please summarise the information in the two screenshots I'll give you brainiest

Chemistry
1 answer:
aleksley [76]3 years ago
4 0

Answer:

Explanation:

A 'mole' is the mass of substance that contains 1 Avogadro's Number of particles of that substance. This is equal to 1 formula weight of the substance. That is when thinking 'moles', think 'how many formula weights are there in the given mass?'

Example.

Given 100 grams of water (H₂O => formula weight = 18 grams/mole) ...

Ask 'how many 18's are there in 100?' => number of moles of H₂O... => 100/18 = 5.555... moles H₂O

This is the same for any substance => how many formula weights are there in the GIVEN mass? Always => #moles.

moles = mass(g)/formula wt(g·mol⁻¹)

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