Question

ANALD411 Inoducing Volumeri Tadriqucs by Analysing Bleaching Soluriens 149 Seree Nee Pre-Laboratory Assignment 1. Describe the hazards you should be aware of when working with (1) 6M HCI solution (2) commercial bleaching solution 2. Briefly explain what is meant by the following terms as they apply to this experiment. (1) standard solution (2) meniscus 3) end point (4) aliquot teute au 28

Answer 1

IIIIINNNNN 1. 96M HCl This is becaupe GM is highly Concentrated, Means very less H₂o. 6 Moles in 1 lite of Water ! It is cordesive to eyes, slain & mucoup membranes. Inhalation exposure may cause eye, nose & Respiratory tract issitation & Inflammation . It is so corossive, It can cause eye damage, even blindness 2 Commercial Bleaching solution - If Inhaled, it coupe coughing & a sore throat. If swallowed, effects are stomach ache, a burning sensation, coughing, vomiting on skin & eyes, It I Causes redness & pain . I 2. 1) Standard solution - A solution containing a precisely I known concentration of an element or a substance. 2) Meniscus - It is the curre in the upper surface of a liquid close to surface of container or another subject, caused by surface tension. 3) End Point - The point during a titration when an indicator shows that the amount of reactant neceppasy for a complete reaction has been added to a solutions 4) Aliquot - A Portion of a larger Whole, especially a sample taken for chemical analysis or other Spanngdenta treatmener