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I am really bad at calculus. Would it be best to take AP Stats over AP Calc A/B? How many moles of nitrogen are in 2.5×10−2 mole of quinine? How do I calculate the mass of 1.000 mol of HCl? I know the answer is 36.46 grams but what are the steps to getting there? Show how mutations are the ultimate source of all genetic variation.? A coin with P (Head) =0.6 is tossed twice. What is the probability that at least one head occurs?