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In the simulation on Solution Preparation you are instructed to invert the volumetric flask to mix...

In the simulation on Solution Preparation you are instructed to invert the volumetric flask to mix the contents by covering the opening with a gloved finger. Explain why this is a bad idea.

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Expert Solution

There are two main reasons behind not covering the opening of volumetric flask with gloved fingers-

1. There are chances that the gloves have some compounds or salts on them. When the solution comes in contact eith glove, the salts will also get mixed up in the solution altering with the concentration as well as the nature of solution.

2. Covering the opening with inger does not provide protection against spillage and there are very high chances of the solution dropping out from the opening resulting in loss of solution.

Thus, volumetric flask should always be covered up with stopper and then only it shoud be inverted for mixing the solution well.

queen_honey_blossom answered 2 years ago
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