3) The mass of a single atom of an element X is 2 65 × 1023 g What is - Science - Atoms and Molecules

Question

3) The mass of a single atom of an element X is 2 65 ×
1023 g What is the atomic mass? What would this element
be?

Ashish Khanna · Accepted Answer

Dear Student

Mass of a single atom = 2
65×10-23 g Therefore the mass of 6
022×1023 atoms of the substance or one mole of substance will be           = Mass of single atom of substance ×6
022×1023          = 2
65×10-23 ×6 022×1023 = 15
98 g Hence, molar mass of a substance is 16 g approx
 Molar mass of the substance is numerically equal to its atomic mass
 Hence , the atomic mass of the element is 16 u

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3) The mass of a single atom of an element X is 2.65 × 1023 g. What is the atomic mass? What would this element be?

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