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Vikentia [17]
3 years ago
13

How many molecules of water are in 1.52 moles of water?

Chemistry
1 answer:
abruzzese [7]3 years ago
5 0

Answer:

9.15×10²³molecules

Explanation:

moles=number of particles/Avogadro's number

1.52=x/6.02×10²³

by cross multiplication;

x=1.52×6.02×10²³

=9.15×10²³

please like and Mark as brainliest

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Answer:

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Explanation:

The data given on the iridium 182 are;

The half life of the iridium 182, t_{(1/2)} = 15 years

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The amount left, N(t) after two half lives is given as follows;

N(t) = N_0 \left (\dfrac{1}{2} \right )^{\dfrac{t}{t_{1/2}} }

For two half lives, t = 2 × t_{(1/2)}

∴ t = 2 × 15 = 30

\dfrac{t}{t_{(1/2)}} = \dfrac{30}{15} = 2

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