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Use the ideal gas laws to calculate the mass of 25 m3 of a mixture of 21% v/v oxygen (O2) and 79% nitrogen (N2) which is at a temperature of 65°C and pressure of 2 bar.
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You have 5 mL of HCl acid (unknown concentration) in a 50 mLvolumetric flask, and bring it up to volume with deionizedwater. Calculate the molarity of the HCl by using the pH equation(pH = -log[H3O+]) , and the dilution ...
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