1) what is the safety precaution associated with handling thecrucible, clay tria

Question

1) what is the safety precaution associated with handling thecrucible, clay triangle, and tripod? 2) at the beginning of the produce, why must the crucible becleaned before weighing? why must the crucible be heated andallowed to cool before weighing? 1) what is the safety precaution associated with handling thecrucible, clay triangle, and tripod? 2) at the beginning of the produce, why must the crucible becleaned before weighing? why must the crucible be heated andallowed to cool before weighing?

Explanation / Answer

1) most likely it is to use tongs to handle them when they are hotor to use an insulated glove that will protect you from the heat ifany of them are hot. 2) You want to clean the crucible before weighing to makesure there is nothing else in there. If it is has crap insideit then it could give you a false mass if you clean it outafterward. So say it weighs 12.5 grams with 0.5g of dust init. Then you clean out the dust and it really weighs 12.0gbut you still think it is 12.5 g. Now when you put in yourproduct and weigh it you'll think you have less product thannormal. Also you need to cool it before you weigh it as itcould damage the balance and to make sure all the liquid you wereevaporating is gone

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