Questions 1.Why is it recommended that gloves be worn when handling liquid ammon

Question

Questions 1.Why is it recommended that gloves be worn when handling liquid ammonia? What 2. If the ammonia solution of Na were not completely converted to NaNH2, how would this 3. If a large excess of Fe(NO3)3.9H20 were added to the NHs solution of Na, how would 4. Could CrCl3.6H20 (i.e., [trans-CrClOH2]-2H20) be used in place of anhydrous 5. Why is the precipitated [Cr(NHs)](NOs)s washed with dilute HNOs rather than with would you do immediately if you spilled liquid ammonia on your skin? affect the subsequent preparation of [Cr(NH3)6](NO3)3? this affect the yield of [Cr(NH3)s](NOs)s and why? CrCl3 in this experiment? Why? water? What is the purpose of the ethanol and ether washes?

Explanation / Answer

1. Skin Contact: CORROSIVE. The gas irritates or burns the skin. Permanent scarring can result. Direct contact with the liquefied gas can chill or freeze the skin (frostbite). Symptoms of more severe frostbite include a burning sensation and stiffness. The skin may become waxy white or yellow. Blistering, tissue death and infection may develop in severe cases.

b. Gas: flush with lukewarm, gently flowing water for 5 minutes. If irritation or pain persists, see a doctor. Liquefied gas: quickly remove victim from source of contamination. DO NOT attempt to rewarm the affected area on site. DO NOT rub area or apply direct heat. Gently remove clothing or jewelry that may restrict circulation. Carefully cut around clothing that sticks to the skin and remove the rest of the garment. Loosely cover the affected area with a sterile dressing. DO NOT allow victim to drink alcohol or smoke. Immediately call a doctor. Treatment is urgently required.

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