The molecular mass of an oxide of an element is 44. the equivalent weight of elemint is 14
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you mean, The molecular mass of an oxide of an element is 44. the equivalent weight of that element is 14. then find atomic mass of the element.
solution : Let us consider that atomic mass of element is M g/mol and valency of element is x
then, chemical formula of element oxide is
and then molecular weight of compound = (2M + 16x)
a/c to question,
molecular mass of oxide = 44 g/mol
so, (2M + 16x) = 44
or, M + 8x = 22.....(1)
again, equivalent weight of element is 14.
so, equivalent weight = atomic mass /valency
or, 14 = M/x
or, M = 14x.....(2)
from equations (1) and (2),
12x + 8x = 22 => x = 1
so, M = 14 g/mol
hence, atomic mass of element is 14g/mol and element is Nitrogen.
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