How many molecules of water are there in 54g of H2O ?
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Answer:
18.066 × 10²³ molecules
Explanation:
Molar mass of one water molecule = 18g
Therefore, no. of moles in the given amount of H2O
= 54g/18g = 3 moles
No. of molecules in 1 mole = 6.022 × 10²³
Therefore, no. of molecules in 3 moles
= 3 × 6.022 × 10²³
= 18.066 × 10²³
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An example of refraction is a bending of the sun's rays as they enter raindrops, forming a rainbow. An example of refraction is a prism.
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