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Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN: 9781259696527
Author: J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher: McGraw-Hill Education
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What is the mass percent of sodium chloride where 52 g of NaCl is dissolved in 272.8 mL of solvent (1.312 g/mL)? Report your answer to the tenths place and do not include units.
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- A student is asked to standardize a solution of barium hydroxide. He weighs out 1.09 g potassium hydrogen phthalate (KHC8H404, treat this as a monoprotic acid). It requires 22.1 mL of barium hydroxide to reach the endpoint. A. What is the molarity of the barium hydroxide solution? M This barium hydroxide solution is then used to titrate an unknown solution of nitric acid. B. If 29.0 mL of the barium hydroxide solution is required to neutralize 29.8 mL of nitric acid, what is the molarity of the nitric acid solution? Marrow_forwardYou are given a 1.25 gram mixture of calcium nitrate and calcium chloride. You dissolve this mixture in 200.0 mL of water and add an excess of 0.300 M silver nitrate. You collect and dry the white precipitate which forms and find it has a mass of 0.325 grams. Calculate the percent calcium chloride by mass in the original mixture.arrow_forwardA sample of a crude grade of sodium hydroxide is sent to a laboratory to be tested for sodium hydroxide content. A 4.500 g sample is dissolved and diluted to 500 mL with water. A 25 mL sample of this solution is titrated with a 0.4838 molar hydrochloric acid solution and requires 19.39 mL to reach the equivalence point. How many moles of sodium hydroxide were in the 4.500 g sample? What mass of sodium hydroxide is this? What is the percent of sodium hydroxide in the crude sample?arrow_forward
- A solution is made using 250.0 mL of ethanol (density 0.7892 g/mL) and 673.1 mL of water (density 1.000 g/mL). What is the mass percent of the ethanol?arrow_forwardEstimate the volume of a solution of 5 M NaOH that must be added to adjust the pH from 4 to 9 in 100 mL of a 100 mM solution of phosphoric acid.arrow_forwardWhen solid silver chloride is added to 100. mL of H2O, 1.9 x 10–4 grams dissolves. What is the Ksp for silver chloride?arrow_forward
- 1)For Magnesium (Mg) with a HCP crystal structure. 1a) Show volume of the unit cell given by 6√3R³c. 1b) With the atomic radius of 0.160 mm and a density of 1.74 g/cm³ for Mg, Calculate the c/a ratio of the unit cell.arrow_forwardSolution 1 Add 2.00 mL of 0.200 M Fe³+. Add 0.00 mL of 0.002 M SCN". Dilute to 10 mL with the solvent (0.1 M HNO3). Determine the concentration of [Fe(SCN)]2+ in solution 1 Concentration Absorbancearrow_forward
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