The poison phosgene (COCl2) can be neutralized with sodium hydroxide (NaOH) to produce salt (NaCl), water and carbon dioxide by the reaction:
COCl2+ 2 NaOH → 2 NaCl + H2O + CO2
If 9.5 grams of phosgene and 9.5 grams of sodium hydroxide are reacted:
a. Will all of the phosgene be neutralized?
b. If so, how much sodium hydroxide remains? If not, how much phosgene remains?