0.4 mol dm–3 aqueous 0.4 mol dm–3 Currently not classified as hazardous at this hydrochloric acid, HCl(aq) HCl(aq) concentration c. 15 cm3 PAG 11.2 pH titration curves – – Identity / amount required Label Hazard information per learner or group 0.1 mol dm–3 aqueous 0.1 mol dm–3 hydrochloric acid, HCl(aq) Currently not classified as hazardous at this HCl(aq) concentration c. 150 cm3 0.1 mol dm3 aqueous 0.1 mol dm–3 ethanoic acid, CH3CO2H(aq) Currently not classified as hazardous at this ethanoic acid concentration c. 150 cm3 0.1 mol dm3 aqueous 0.1 mol dm–3 sodium hydroxide, NaOH(aq) Currently not classified as hazardous at this NaOH(aq) concentration c. 150 cm3 Currently not classified as hazardous at this 0.1 mol dm–3 aqueous concentration, recommend labelling as: but 0.1 mol dm–3 ammonia, NH3(aq) WARNING NH3(aq) Causes skin and eye irritation c. 150 cm3 Ensure room is well ventilated inhaling vapour PAG 11.3 pH acids and buffers – –
0.4 mol dm–3 HCl(aq) 0.4 mol dm–3 aqueous hydrochloric acid, HCl(aq) c. 15 cm3 Currently not classified as hazardous at this concentration PAG 11.2 – pH – titration curves Label Identity / amount required per learner or group Hazard information 0.1 mol dm–3 HCl(aq) 0.1 mol dm–3 aqueous hydrochloric acid, HCl(aq) c. 150 cm3 Currently not classified as hazardous at this concentration 0.1 mol dm–3 ethanoic acid 0.1 mol dm3 aqueous ethanoic acid, CH3CO2H(aq) c. 150 cm3 Currently not classified as hazardous at this concentration 0.1 mol dm–3 NaOH(aq) 0.1 mol dm3 aqueous sodium hydroxide, NaOH(aq) c. 150 cm3 Currently not classified as hazardous at this concentration 0.1 mol dm–3 NH3(aq) 0.1 mol dm–3 aqueous ammonia, NH3(aq) c. 150 cm3 Currently not classified as hazardous at this concentration, but recommend labelling as: WARNING Causes skin and eye irritation Ensure room is well ventilated inhaling vapour PAG 11.3 – pH – acids and buffers