Although you will use only small amounts of the solutions in this experiment. Yo

Question

Although you will use only small amounts of the solutions in this experiment. You must be aware of some of the hazards of these solutions. Briefly comment on the hazards of an aqueous solution of: NH_3 HCl or NaOH Use the information in Table 1 to determine the color you would expect to see in the following solutions. A p^H 11 solution containing phenolphthalein indicator. A pH 11 solution containing Alizarin Yellow R indicator. A student performed an experiment similar to the one that you will perform but used different solutions. The student's data are presented in the table below. Student data tor estimating the pH in the solutions indicator color 0.1M Thymol Methyl Bromothymol solution Blue Red Blue NaNO_3 Red yellow yellow NaNO_2 green yellow blue HNO_3 red red yellow HNO_2 orange red yellow Is a 0 1M NaN0_2 solution acidic or basic? What experimental evidence supports your answer? List the acidic solution(s) student by the student. What experimental e

Explanation / Answer

Hazard s of an aqueous solution NH3

Aqueous solution NH3 is considered a highly hazard because it is corrosive to the skin, eyes, and lungs. Its inhalation is also very toxic and due to inhalation of NH3 pulmonary edema, shortness of breath occurs.

Hazard s of an aqueous solution HCl:

Inhalation of fumes of HCl results in coughing and choking sensation,.

Inhalation of fumes of HCl   creates irritation of nose and lungs.

Liquid HCl causes burns.

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