Which one has greater number of atoms among the following ? 72g water, 90g iron, 7mol hydrogen gas, 33g oxygen gas
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7 mol hydrogen gas will have the most number of atoms of the other options.
every element's 1 mol contains 6.023*10^23 atoms.
hydrogen have the most number of mole in the options ,so the correct answer is 7 mol of hydrogen
every element's 1 mol contains 6.023*10^23 atoms.
hydrogen have the most number of mole in the options ,so the correct answer is 7 mol of hydrogen
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no.of atoms=no.of moles ×avogadro's number
a)no.of atoms in water=6.022×10²³ × 4
=24.088×10²³
b)no.of atoms of iron =6/022×10²³ × 1.61
=9.69×10²³
c)no.of atoms in H2=6.022×10²³×2×7=84.308×10²³
d)no.of atoms in O2= 6.022×10²³ × 33/32
=6.21×10²³
so more no.of atoms in H2<H2O<Fe<O2
a)no.of atoms in water=6.022×10²³ × 4
=24.088×10²³
b)no.of atoms of iron =6/022×10²³ × 1.61
=9.69×10²³
c)no.of atoms in H2=6.022×10²³×2×7=84.308×10²³
d)no.of atoms in O2= 6.022×10²³ × 33/32
=6.21×10²³
so more no.of atoms in H2<H2O<Fe<O2
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