Exam 1 Study Guide.pdf - Exam 1 Study Guide Analytical...

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Exam 1 Study Guide: Analytical Chemistry 221 Questions - Calculate molar ion (molarity) of ethanol ࠵? " ࠵? $ ࠵?࠵? in an aqueous solution that contains 2.30 grams of ethanol (46.07 g/mol) in 3.50 L of solution. - Describe the preparation of 2.00 L of 0.108 M ࠵?࠵?࠵?࠵? " 2࠵? " ࠵? (244.3 g/mol). - Describe the preparation of 500. mL of 0.0740 M ࠵?࠵? * solution from solid ࠵?࠵?࠵?࠵? " 2࠵? " ࠵? (244.3 g/mol).
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- What is the molarity of ࠵? , in a solution that contains 63.3 ppm of ࠵? - ࠵?࠵?(࠵?࠵?) 3 (329.3 g/mol)? - Calculate p-value for each ion in a solution that is 2.00 × 10 *- ࠵? in ࠵?࠵?࠵?࠵? and 5.4 × 10 *; ࠵? in ࠵?࠵?࠵? - Calculate the molar concentration of ࠵?࠵? , in a solution that has a pAg of 6.372. - Describe the preparation of 1.500 L of 0.215 M ࠵?࠵?࠵?࠵? (40 g/mol) from the concentrated commercial reagent [50.00% ࠵?࠵?࠵?࠵? (w/w) sp. Gr. 1.525]
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- (a.) What mass of ࠵?࠵?࠵?࠵? - (169.9 g/mol) is needed to convert 2.330 g of ࠵?࠵? " ࠵?࠵? - (106.0 g/mol) to ࠵?࠵? " ࠵?࠵? - ? (b.) What mass of ࠵?࠵? " ࠵?࠵? - (275.7 g/mol) will be formed? a) ࠵?࠵? " ࠵?࠵? - (࠵?࠵?) + 2࠵?࠵?࠵?࠵? - (࠵?࠵?) ⇌ ࠵?࠵? " ࠵?࠵? - (࠵?) + 2࠵?࠵?࠵?࠵? - (࠵?࠵?) - How many ࠵?࠵? , ions are contained in 4.62 g of ࠵?࠵? - ࠵?࠵? ; ? - Find the number of millimoles of the indicated species: a. 64 mg of ࠵? " ࠵? $ b. 12.92 g of ࠵?࠵? " c. 30.0 g of ࠵?࠵?࠵?࠵?࠵? -
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- Find the number of millimoles of solute in a. 750 mL of 0.0416 M KSCN b. 250 mL of a solution that contains 4.20 ppm of ࠵?࠵?࠵?࠵? ; c. 3.50 L of 0.276 M KCl - What is the mass in milligrams of a. 0.666 mol of HN ࠵? - b. 300 mmol of MgO - What is the mass in grams of: a. 6.21 mol of KBr b. 12.8 mmol of ࠵?࠵?(࠵?࠵? ; ) " (࠵?࠵? ; ) " • 6࠵? " ࠵?
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- What is the mass in milligrams of solute in a. 26.0 mL of 0.150 M sucrose (342 g/mol) b. 737 mL of a solution that contains 6.38 ppm of Pb(N ࠵? - ) " - What is the mass in grams of solute in a. 27.0 mL of 8.75 × 10 *; M of benzoic acid (122 g/mol) b. 3.50 L of a solution that contains 21.7 ppm of Sn ࠵?࠵? " - Calculate the p-functions for each ion in a solution that is: a. 0.0100 M in NaBr b. 0.0100 M in Ba ࠵?࠵? " c. 5.2 × 10 *- ࠵? ࠵?࠵? ࠵?࠵?࠵? and 0.020 M in NaCl - Convert the following p-functions to molar concentrations a. pH=8.67 b. pOH=0.125 c. pLi= - 0.321 d. pMn= 0.0025
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- Sea water contains an average of 1.08 × 10 - ࠵?࠵?࠵? of ࠵?࠵? , and 270 ppm ࠵?࠵? ; "* . Calculate: a. The molar concentration of ࠵?࠵? , ࠵?࠵?࠵? ࠵?࠵? ; "* given that the average density of sea water id 1.02 g/mL b. The pNa and pS ࠵? ; for sea water - A solution was prepared by dissolving 414 mg of ࠵? - ࠵?࠵?(࠵?࠵?) 3 (329 g/mol) in sufficient water to give 750 mL of solution. Calculate: a. The molar analytical concentration of ࠵? - ࠵?࠵?(࠵?࠵?) 3 b. The molar concentration of ࠵? , c. The molar concentration of Fe(CN ) 3 -* d. The weight/volume percentage of ࠵? - ࠵?࠵?(࠵?࠵?) 3 e. pK for the solution f. ࠵?࠵?࠵?(࠵?࠵?) 3 for the solution
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- Describe the preparation of 750 mL of 6.00 M ࠵? - ࠵?࠵?
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