1. How many moles are in 3.01 x 10^23 molecules of Boron trichloride

There are 0.499 moles present in molecules of Boron trichloride.

Explanation:

According to mole concept, there are molecules present in 1 mole of a substance.

Hence, number of moles present in molecules are as follows.

Thus, we can conclude that there are 0.499 moles present in molecules of Boron trichloride.

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as in this case where a scientist wants to use a model to present the results of his detailed scientific investigation. he should do it as it will him to make the audience understand the concept in a much better way. also, it can be changed according to new scientific understandings.