That is the element Germanium Atomic weight = 72.64
Answer:
<em>Molar mass of the gas is 0.0961 g/mol</em>
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Explanation:
The effusion rate of an unknown gas = 11.1 min
rate of effusion = 2.42 min
molar mass of hydrogen = 1 x 2 = 2 g/m
molar mas of unknown gas = ?
From Graham's law of diffusion and effusion, the rate of effusion and diffusion is inversely proportional to the square root of its molar mass.
from
=
where
= rate of effusion of hydrogen gas
= rate of effusion of unknown gas
= molar mass of H2 gas
= molar mass of unknown gas
substituting values, we have
=
4.587 =
= /4.587
= 0.31
= = <em>0.0961 g/mol</em>
Answer:
Today, the atom is defined as the smallest particle that can be considered an element.
Explanation:
Cl, because a higher electronegativity indicates that the atom attracts more electrons.
Answer:
since mass percent is based on the proportions of elements in a compound, the mass of a sample does not matter