titration-lab-II

titration-lab-II - NaOH + HCl NaOH HCl Volume used (mL)...

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NaOH + HCl NaOH + H 2 SO 4 NaOH HCl NaOH H 2 SO 4 Volume used (mL) 10 34.3 10 17.1 Molarity (M) 0.6 0.175 0.6 0.175 1. Neutralization 2. NaOH + HCl H 2 O + NaCl 2 NaOH + H 2 SO 4 2 H 2 O + Na 2 SO 4 3. Twice as much HCl was required. Because it takes twice as much HCl (one H) as H 2 SO 4 (two Hs) to neutralize the same amount of NaOH
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5. #H x M A x V A = #OH x M B x V B 4. H 2 SO 4 (aq) + 2NaOH(aq) 2H 2 O + Na 2 SO 4 (aq) 1 mol H 2 SO 4 2 mol NaOH x # L H 2 SO 4 = 0.010 L NaOH = 0.01714 L = 17.1 mL 0.60 mol NaOH L NaOH x L H 2 SO 4 0.175 mol H 2 SO x
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1. What volume of 0.10 mol/L NaOH is needed to neutralize 25.0 mL of 0.15 mol/L H 3 PO 4 ? 2. 25.0 mL of HCl(aq) was neutralized by 40.0 mL of 0.10 mol/L Ca(OH) 2 solution. What was the concentration of HCl? 3. A truck carrying sulfuric acid is in an accident. A laboratory analyzes a sample of the spilled acid and finds that 20 mL of acid is neutral- ized by 60 mL of 4.0 mol/L NaOH solution. What is the concentration of the acid?
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titration-lab-II - NaOH + HCl NaOH HCl Volume used (mL)...

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