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The element chromium exists in bcc latti...

The element chromium exists in bcc lattice with unit cell edge `2.88xx10^(-10)` m. The density of chromium is `7.2 xx 10^(3) kg m^(-3)`. How many atoms does `52 xx 10^(-3)` kg of chromium contain ?

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The correct Answer is:
`6.04xx10^(23)`
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