Question

The mass of a molecule of hydrogen is 3.332 × 10^-27 kg. Find the mass of 1 kg Molecule
of hydrogen gas
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Answer 1

$\begin{gathered}\large {\boxed{\sf{\mid{\overline {\underline {\star ANSWER ::}}}\mid}}}\end{gathered}$

Given :-

$\sf{\star \: Mass \: of \:one \: molecule \: of \: Hydrogen } \\ \sf{ = 3.332 \times {10}^{ - 27} \: Kg }$

To Find :-

$\sf { \star \:Mass \: of \: 1 \: Kg \: Molecule \: of \: Hydrogen \: Gas \: ({H}_{2} )}$

Solution :-

$\sf{We \: know \: that, }$

$\sf{\: 1 \: Mole \: of \: Hydrogen \: gas = 6.02 \times {10}^{26} molecules \: of \: Hydrogen}$

$\sf{We \: are \: asked \: to \: find \: 1 \: Kg \: Mole : }$

$\sf{which \: can \: be \: given \: as : }$

$\boxed{\sf{The \: mass \: of \: a \: molecule \: of \: hydrogen \times 1 \: mole} }\\ \\ \sf{=( 3.332 \times {10}^{ - 27} ) \times (6.02 \times {10}^{26}) } \\ \sf{ = 20.058 \times {10}^{ - 1} } \\ \sf{ \approx \: 2 \: kg}$

$\sf \bold {\underline{ \therefore \:Mass \: of \: 1 \: Kg \: Molecule \: of \: Hydrogen \: Gas \: ({H}_{2} )is \: 2 \:kg}}$

@SweetestBitter

Answer 2

Answer:Mass of molecule of hydrogen ×1mole

=(3.332 ×10 to the power of -27)(6.02×10 to the power of 26)

=2.058×10the power of -1

=approximately 2kg

Hopeit helps u

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