Question

Number of gram atom of oxygen presents in 0.3 mole of (COOH) 2 . 2H2O is
a) 9
b)18
c) 0.9
d )1.8
plz.. explain step by step..
i know the answer.. ans :B) 18

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Answer 1

Answer:

gram atom means mole.

thus moles of compound is 0.3

for finding the moles of a element when the moles of a compound are given then we have to multiply the atomicity of the element with the moles of the compound.

atomicity or number of oxygen atoms is 6 thus 0.3 × 6 will give 1.8