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Sagot :
Answer:
Total no. of atoms in 0.25 moles of H2 are 3.01 × 10^23.
Explanation:
carbon tetrahydride: CH₄
there are 4 atoms H in 1 mole CH₄
N = n x No
No = avogadro's = 6.02 x 10²³
number of molecules CH₄:
= 0.25 x 6.02 x 10²³
= 1.505 x 10²³ molecules
for 4 atoms of H:
= 4 atoms/molecules x 1.505 x 10²³ molecules
= 6.02 x 10²³ atoms
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