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07-03-2019
Chemistry

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A sample of calcium contains 0.025 moles how many atoms are in this sample

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bushra0987 bushra0987

09-03-2019

As we know 1 mole of any substance having particles Na=6.02×10^23

So 0.025 moles of calcium having

1 mole/0.025=6.02×10^23/x

×=0.025×6.02×10^23=1.51×10^22

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