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Question 6 (1 point) A laboratory experiment was conducted to measure the solubility of Sodium bromide (NaBr) in methanol under five different temperatures in Fahrenheit.
Question 6 (1 point) A laboratory experiment was conducted to measure the solubility of Sodium bromide (NaBr) in methanol under five different temperatures in Fahrenheit. Sample data is given in the table below. [Source : Pinho, S. P.; Macedo, E. A. Solubility of NaCl, NaBr, and KCI in water, methanol, ethanol, and their mixed solvents. J. Chem. Eng. Data 2005, 50, 29-32, DOI: 10.1021/je049922y] Temperature Solubility in in grams per Fahrenheit (x) 100 g of methanol (y) 77 14.9 O 86 14.8 104 14.5 122 14.2 140 13.9 x = 105 y = 14 8 5122 14.2 140 13.9 x = 105 y = 14 8 5 Sx = 25 Sy = 0 . 77 . 42 What is the correlation coefficient? A) 0.9895 O B) 0.0105 O c) -1.1 O D) -0.68 O E) -0.9895
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