Chemistry 112 pre and post lab questions

i need it as soon as possible max 3 hours

 its chemistry 112 pre and post lab questions 7-8 total for 2 different experiments the questions are the first 3 pics which i have attached 

and the rest of the  pics are the experiment sheer for the post questions experiment  please don’t sign the hand shake until you 100 percent sure that you can do it

as short as possible just answering the question

thank you

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