Question

calculate the number of atoms in 5 gram of calcium​

Answer 1

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:Explanation: The Periodic Table tells us that 6.022×1023 individual calcium atoms have a mass of 40.1⋅g

Answer 2

so , this 40 g is can be said to be one mole of calcium atom. One mole of any substances contain the number of molecules or atoms equal to 6.022×10^23. = 3.011×10^22 atom will be contained in 2 grams .

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