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Tool design question? Calculate the volume of 2.00 mol of liquid water at a temperature of 20 ∘C (at which its density is 998 kg/m3).? I need help with this math? Is probability and statistics considered easy? What is the derivative of the sqrt of 2x? The book says the answer is the sqrt of 2/2•sqrt x. But I keep getting 1/sqrt(2x).?