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# HOME4 - Produced with a Trial Version of PDF Annotator...

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Homework 4 This HW is due in class on Thursday Oct 1 1. Calculate the mass of NaCI contained in 250. mL of a 0.250 M solution of NaCl. Atomic Molar Mass Na 23.0 g.mol -1 Cl 35.5 g.mol -1 a) 3.66 g.mol -1 b) 62.5 g.mol -1 c) 36.6 g.mol -1 d) none of these 2. Calculate the molarity of nitrate ions in 0.02 M calcium nitrate 3. Concentrated hydrochloric acid is 37.0% HCl by mass. It has a density of 1.19 g/mL. Calculate the molarity of HCl solution. Atomic Molar Mass H 1.0 g.mol -1 Cl 35.5 g.mol -1 Produced with a Trial Version of PDF Annotator - www.PDFAnnotator.com

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4. A 50.0 mL solution is diluted with 100.0 mL H 2 O to a final concentration of 0.125 M. The initial concentration of the solution is 5. Calculate the volume of 0.250 M HCl (aq) required to react completely with 25.0 mL of 1.50 M Ba(OH) 2 (aq) .
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