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Paired Exercise 14.27 What will the molarity be of the resulting solutions made by mixing the following? Assume that volumes are additive. (a) 143 mL of 4.9 M H3PO4 with 779 mL of H20 the tolerance is +/-2% (b) 225 mL of 0.60 M Na2SO4 with 741 mL of H20 M the tolerance is +/-2% (c) 75 mL of 0.50 M HNO3 with 75 mL of 1.5 M HNO3 M the tolerance is +/-2%

Paired Exercise 14.27 What will the molarity be of the resulting solutions made by mixing the following? Assume that volumes are additive. (a) 143 mL of 4.9 M H3PO4 with 779 mL of H20 the tolerance is +/-2% (b) 225 mL of 0.60 M Na2SO4 with 741 mL of H20 M the tolerance is +/-2% (c) 75 mL of 0.50 M HNO3 with 75 mL of 1.5 M HNO3 M the tolerance is +/-2%

Chemistry for Engineering Students
Chemistry for Engineering Students
4th Edition
ISBN:9781337398909
Author:Lawrence S. Brown, Tom Holme
Publisher:Lawrence S. Brown, Tom Holme
Chapter12: Chemical Equilibrium
Section: Chapter Questions
Problem 12.50PAE: In Exercise 12.49, what is the allowed concentration of AgCl in g per 100 g of water? The Safe...
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### Paired Exercise 14.27 **What will the molarity be of the resulting solutions made by mixing the following? Assume that volumes are additive.** #### (a) Mixing 143 mL of 4.9 M H₃PO₄ with 779 mL of H₂O \[ \text{Molarity: } \_\_\_\_\_\_\_ M \] *the tolerance is +/- 2%* --- #### (b) Mixing 225 mL of 0.60 M Na₂SO₄ with 741 mL of H₂O \[ \text{Molarity: } \_\_\_\_\_\_\_ M \] *the tolerance is +/- 2%* --- #### (c) Mixing 75 mL of 0.50 M HNO₃ with 75 mL of 1.5 M HNO₃ \[ \text{Molarity: } \_\_\_\_\_\_\_ M \] *the tolerance is +/- 2%* --- These exercises prompt students to apply the concept of molarity and dilution calculations by mixing given volumes of solutions and solvents. The answers should take into account the additive volumes and the dilution effect on the molarity of the solutions.
Transcribed Image Text:### Paired Exercise 14.27 **What will the molarity be of the resulting solutions made by mixing the following? Assume that volumes are additive.** #### (a) Mixing 143 mL of 4.9 M H₃PO₄ with 779 mL of H₂O \[ \text{Molarity: } \_\_\_\_\_\_\_ M \] *the tolerance is +/- 2%* --- #### (b) Mixing 225 mL of 0.60 M Na₂SO₄ with 741 mL of H₂O \[ \text{Molarity: } \_\_\_\_\_\_\_ M \] *the tolerance is +/- 2%* --- #### (c) Mixing 75 mL of 0.50 M HNO₃ with 75 mL of 1.5 M HNO₃ \[ \text{Molarity: } \_\_\_\_\_\_\_ M \] *the tolerance is +/- 2%* --- These exercises prompt students to apply the concept of molarity and dilution calculations by mixing given volumes of solutions and solvents. The answers should take into account the additive volumes and the dilution effect on the molarity of the solutions.
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