Pre-Laboratory Assignment 1. The use of microscale techniques does not (11 Descr

Question

Pre-Laboratory Assignment 1. The use of microscale techniques does not (11 Describe the color change the student should change hazardous natures ottho reagoms use observe ather addng ooncentrated HCIto the equilib- Briefly describe the harards assodated rium mixture Smal amounts of each of th folowing concentrated HCI. NaOH solution, AgNO, solution, and solid (20 Briety explain your answer to ()interms ot Le Chateliers principle. 2- Briefly explain folowing: should observe atter adding solid (2) endothermic reaction to the mixture prepared in UM Recall that Naacroidissolves in water and disaociates into Na (3) Le Chateler's principle 3. A student is studying equilbrium represented crzo,2 laq, orange) +3Hzoln The mixture obtained by the student is yelow.

Explanation / Answer

Conc HCl acid is corrosive even in small amounts and concentrated acid release acidic mists that are also dangerous. If the acid or mist come into contact with the skin, eyes, or internal organs, the damage can be irreversible or even fatal in severe cases

NaOH burn the lips, tongue, throat and stomach. Symptoms may include nausea, vomiting, stomach cramps and diarrhea. eye contact causes severe burns with redness, swelling, pain and blurred vision. skin contact can cause pain, redness, burns, and blistering.

AgNO3 solution when contact with skin may cause Pain. Redness. Skin burns. Blisters. eye contact will cause Redness. Pain. Severe deep burns. Loss of vision. ingestion will lead to Abdominal pain. Burning sensation. Shock or collapse.

solid NaHSO4 is toxic; inhalation, ingestion or skin contact with material may cause severe injury. Contact with molten substance may cause severe burns to skin and eyes.

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