Science, asked by roman2398, 1 year ago

The atomic mass of calcium is 40u.What will be the number of calcium atom in 4.0 g of calcium?

Answers

Answered by Dårviñ714
0
40g of calcium = 6.022 x 10²³ atoms
1g of calcium = 6.022 x 10²³/ 40
4 g of calcium = 6.022 x 10²³/ 40 x4
4 g of calcium contains 6.022x 10²² atoms
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