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Calculate the mass of the following a....

Calculate the mass of the following
a. One atom of calcium
b. One molecules of `SO_(2)`

Text Solution

Verified by Experts

a. `6.023 xx 10^(23) "atoms of" Ca implies 40 g`
1 atom of `Ca implies (40)/(6.023 xx 10^(23)) implies 6.6 xx 10^(-23) g`
b. `6.023 xx 10^(23)` molecules of `SO_(2) implies 64 g`
1 molecules `implies (64)/(6.023 xx 10^(23))`
`implies 1.60 xx 10^(-23) g`
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