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AP EAMCET · Chemistry · Structure of Atom

\(3.011 \times 10^{22}\) atoms of an element weight \(1.15 \mathrm{~g}\). The atomic mass of the element is

  1. A 10 amu
  2. B 2.3 amu
  3. C 35.5 amu
  4. D 23 amu
Verified Solution

Answer & Solution

Correct Answer

(D) 23 amu

Step-by-step Solution

Detailed explanation

Given, \(3.011 \times 10^{22}\) atoms of an element weight = 1.15 g Now, \(6.023 \times 10^{23}\left(N_A\right)\) atoms of an element will weight \[ =1.15 \times \frac{6.023 \times 10^{23}}{3.011 \times 10^{22}}=23 \mathrm{~g} \] The atomic mass of the element is…