Suppose you need to prepare 250. 0 ml of a ph=3. 60 buffer that has a total buffer concentration of formic acid + formate of 0. 030 m. How many moles of formic acid will you need? the pka of formic acid is 3. 75.

It depends on the subject for me. some exams are easier than others so i usually go through it and answer questions i know based on my general knowledge, then double check after. going through the lesson can a lot  because the exams can be  very lesson-specific, but sometimes they are ridiculously long so a lot of people don't take the time. i did find that, when i went through the lessons, i was making 100's on my exams vs strictly using + the internet and  i make 90's. 

To make your papers high quality, you - make sure you establish a clear purpose- use a variety of sentence structures and advanced vocabulary - organize the essay effectively to provide a coherent flow of thought/argument- stay on topic! make sure each sentence supports your thesis/argument/purpose - avoid incorrect grammar and mechanics that could detract from your credibility.- use liking words and sentences so your essay flows. as for the new strategies you have learned from the lesson, i think you can draw from he bullet points listed above. hope this !