No of moles = given mass ÷ molecular mass
n = 55.98 ÷ (12+19×2+35.5×2)
<span>Answer:
Graham's law of gaseous effusion states that the rate of effusion goes by the inverse root of the gas' molar mass.
râšM = constant
Therefore for two gases the ratio rates is given by:
r1 / r2 = âš(M2 / M1)
For Cl2 and F2:
r(Cl2) / r(F2) = âš{(37.9968)/(70.906)}
= 0.732 (to 3.s.f.)</span>
Non-metal atoms gain an electron, or electrons, from another atom to become >negatively charged ions.
