A sealed flask initially contains 0.250 mol of neon atoms and 0.150 mol of chlorine…
CHEMISTRY · Subjective · A Level · Chemistry · Amount of substance · Amount of substance
Problem
A sealed flask initially contains 0.250 mol of neon atoms and 0.150 mol of chlorine molecules (Cl₂). After 10.0 g of argon gas are added, a procedure removes exactly 40.0 % of the neon atoms while leaving the argon and chlorine unchanged. Calculate the total number of particles (atoms or molecules, as appropriate) remaining in the flask after the removal step.