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Gemiola [76]
3 years ago
8

How many molecules are in 1kg of water

Chemistry
1 answer:
Mila [183]3 years ago
8 0

Answer:

334.2× 10²³ molecules

Explanation:

Given data:

Mass of water = 1 Kg ( 1000 g )

Number of molecules = ?

Solution:

Number of moles of water:

Number of moles = mass/ molar mass

Number of moles = 1000 g/ 18 g/mol

Number of moles = 55.5 mol

1 mole contain 6.022× 10²³ molecules

55.5 mol×6.022× 10²³ molecules

334.2× 10²³ molecules

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Answer:

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A = A_0 \times e^{-\lambda \times t}

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