Explain commercial-grade phosphoric acid solution

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Reference no: EM13184327

(1) A typical commercial-grade phosphoric acid solution is 75% phosphoric acid by mass, and has a density of 1.57 grams per milliliter. What are the molarity and molality of H3PO4 in this acid?

2) A 2.11 gram sample of naphthalene (C10H8) dissolved in 35.00 grams of para-xylene has a freezing point of 11.25oC. The pure solvent has a freezing point of 13.26oC. What is the freezing point depression constant of para-xylene?

(3) In the reaction A + 2B ----? C + 3D, the rate of disappearance of A is -2.2x10-4 M-1 (a) What is the rate of disappearance of B? (b) What is the rate of formation of D?

Reference no: EM13184327

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