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Expression? How many milliliters of a stock solution of 12.0 M HNO3 would you have to use to prepare 0.500 L of 0.200 M HNO3? Find the real zeros of f(x)=1/3x^2+1/3x-2/3....? How much resistance and tolerance does a resistor that has the color bands red, violet, orange, gold have? Show your calculation.? What is 5/6+5/7*1/5?