**Educational Content: Calculating Molarity and Net Ionic Equations****A. Problem Overview:**A 2.496 gram sample of K₃PO₄ is dissolved in a 250.0 mL volumetric flask to make a stock solution.**Steps to Solve:****a. Determine the Molarity of the Whole Solution:**1. Calculate moles of K₃PO₄: - Mass: 2.496 g - Molar mass of K₃PO₄: (39 * 3) + 31 + (16 * 4) = 212 g/mol - Moles of K₃PO₄ = 2.496 g / 212 g/mol = 0.01177 mol2. Calculate molarity (M) of K₃PO₄: - Volume = 250.0 mL = 0.250 L - M = moles / volume = 0.01177 mol / 0.250 L = 0.04708 M\[ \text{Calculated molarity is boxed as } M = 0.04708 \, \text{M} \]**b. Determine the Molarity of the K⁺ Ions:**K₃PO₄ dissociates into 3 K⁺ ions. Therefore, the molarity of K⁺ = 3 * 0.04708 M.**c. Concentration after Dilution:**If 10 mL of the stock solution is removed and placed in a 100 mL volumetric flask, calculate the concentration of the diluted solution using the formula:\[ C_1V_1 = C_2V_2 \]\[ C_2 = \frac{C_1 \times V_1}{V_2} \]**d. Net Ionic Equation:**Example reaction:\[ \text{Ni}^{2+} + 2 \text{e}^- \rightarrow \text{NiS (s)} \]**Reality Check:** Make sure your Net Ionic Equation supports your driving force.

(S) (s) (5) A 2.496 gram sample of KPO4 is dissolved in a 250.0mL stock solution. a. Determine the molarity of the whole solution. M=moles Volume L 2.4969|Imol 2129 0.0 b. Determine the molarity of the K* ions. c. If 10mL of the stock solution is then removed and flask, what is the concentration of the diluted solu

(S) (s) (5) A 2.496 gram sample of KPO4 is dissolved in a 250.0mL stock solution. a. Determine the molarity of the whole solution. M=moles Volume L 2.4969|Imol 2129 0.0 b. Determine the molarity of the K* ions. c. If 10mL of the stock solution is then removed and flask, what is the concentration of the diluted solu

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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