AP EAMCET · Chemistry · Some Basic Concepts of Chemistry
\(3.011 \times 10^{22}\) atoms of an element weighs \(1.15 \mathrm{~g}\). The atomic mass of the element is
- A \(23\)
- B \(10\)
- C \(16\)
- D \(35.5\)
Answer & Solution
Correct Answer
(A) \(23\)
Step-by-step Solution
Detailed explanation
From Avogadro's law, Avogadro's number \(=\) Atomic mass of the element \(\because 3.011 \times 10^{22}\) atoms of an element weigh \(=1.15 \mathrm{~g}\) \(\therefore 6.023 \times 10^{23}\) atoms weigh \(=\frac{1.15 \times 6.023 \times 10^{23}}{3.011 \times 10^{22}}=23\)
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