Tuesday, April 7- Chem 145 1. (1 pt) How many milliliters of 12.0 M hydrochloric acid should are needed to make 250.0 mL of a 1.5 M solution? (3 pts) Calculate the number of mercury (Hg) aton concentration of 1.0 ppb. 2. in an aqueous solution with a volume of 1.00 L and a

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A: Given :  Ksp of CaSO4 = 2.4 x 10-5  Volume of solution= 1500 ml

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Q: 0.350 M

A: Volume of acid ( HCl ) = 100.0mL  Volume of base ( C5H5N ) = 75.0mL

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