Atomic mass of calcium is 40. The mass of2.5 gram atoms of calcium is _
Question
Atomic mass of calcium is 40. The mass of2.5 gram atoms of calcium is _
Solution
The atomic mass of an element is the mass of one mole (or 6.022 x 10^23 atoms) of that element. For calcium, this is 40 grams.
So, if 1 mole (or 1 gram atom) of calcium is 40 grams, then 2.5 moles (or 2.5 gram atoms) of calcium would be:
2.5 gram atoms * 40 grams/gram atom = 100 grams
So, the mass of 2.5 gram atoms of calcium is 100 grams.
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