solution3_pdf - toupal(rgt374 Homework 3 Sutclie(52410 This print-out should have 24 questions Multiple-choice questions may continue on the next column

solution3_pdf - toupal(rgt374 Homework 3 Sutclie(52410 This...

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toupal (rgt374) – Homework 3 – Sutcliffe – (52410) 1 This print-out should have 24 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. Read the last third of the questions care- fully; you may have to take into account the van’t Hoff factor, i. 001 10.0 points 58.7 g sodium nitrate is dissolved in water tomake 616 g of solution.What is the percent sodium nitrate in thesolution?003(part 1 of 2) 10.0 pointsA student investigating the properties of so-lutions containing carbonate ions prepared asolution containing 6.749 g Na2CO3in a flaskof volume 250 mL. Some of the solution wastransferred to a buret.What volume of so-lution should be dispensed from the buret toprovide 7.558 mmol Na2CO3? Explanation: M = 2 . 65 M V = 445 mL = 0 . 445 L ? g CH 2 O = (0 . 445 L) × 2 . 65 mol CH 2 O L soln × 30 g CH 2 O 1 mol = 35 . 3775 g 2 - 3
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toupal (rgt374) – Homework 3 – Sutcliffe – (52410) 2Calculatethemassofethyleneglycol
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