Question

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Answer 1

$\large{\underline{\sf{\orange{Points \: To \: Be \: Remembered-}}}}$

$\large{\boxed{\sf{Atomic \: weight \: of \: oxygen = 16g/mole}}}$

$\large{\boxed{\sf{1 \: mole \: of \: Oxygen = 6.023 \times {10}^{23} }}}$

$\large{\underline{\sf{\purple{To \: Find-}}}}$

Mass Of One Oxygen Atom.

$\large{\underline{\sf{\blue{Solution-}}}}$

We can Conclude that,

$\boxed{\sf\green{★ Mass \: Of \: 1 \: Atom \: Of \: Oxygen = \frac{Atomic \: Weight \: Of \: Oxygen}{1 \: Mole \: Of \: Oxygen} }}$

Placing Values,

$\sf\leadsto{ \frac{16}{6.023 \times {10}^{23} } }$

$\sf\leadsto{\frac{\cancel{16}}{\cancel{6.023 \times {10}^{23} }}}$

$\boxed{\leadsto\sf\red{★ \: 2.66 \times {10}^{23} kg}}$

Hence,

Mass Of 1 Oxygen Atom Is 2.66 × 10²³Kg.

Answer 2

$\large{\underline{\sf{\pink{Points \: To \: Be \: Remembered-}}}}$

$\large{\boxed{\sf{Atomic \: weight \: of \: oxygen = 16g/mole}}}$

$\large{\boxed{\sf{1 \: mole \: of \: Oxygen = 6.023 \times {10}^{23} }}}$

$\large{\underline{\sf{\red{To \: Find-}}}}$

Mass Of One Oxygen Atom.

$\large{\underline{\sf{\orange{Solution-}}}}$

We can Conclude that,

$\boxed{\sf\purple{★ Mass \: Of \: 1 \: Atom \: Of \: Oxygen = \frac{Atomic \: Weight \: Of \: Oxygen}{1 \: Mole \: Of \: Oxygen} }}$

Placing Values,

$\sf\leadsto{ \frac{16}{6.023 \times {10}^{23} } }$

$\sf\leadsto{\frac{\cancel{16}}{\cancel{6.023 \times {10}^{23} }}}$

$\boxed{\leadsto\sf\blue{★ \: 2.66 \times {10}^{23} kg}}$

Hence,

Mass Of 1 Oxygen Atom Is 2.66 × 10²³Kg.