A standard solution is made with 10.0 mL of 0.20 M ER (excess reagent) plus [x] mL of 0.0010M LR (limiting reagent) and diluted to 25.0 mL (total volume). What is the concentration of P (product)? ER (aq) + LR (aq) → P (aq) о O (Molarity of LR) + (Molarity of ER) 2 (Molarity in mol/L) x (Volume in L) = moles (Molarity of ER in mol/L) x (Volume of ER in L) x (1 mol P/1 mol ER) Total Volume in L (Molarity of LR) x (1 mol P/1 mol LR) Total Volume in L (Molarity of LR in mol/L) x (Volume of LR in L) x (1 mol P/1 mol LR) Total Volume in L

A standard solution is made with 10.0 mL of 0.20 M ER (excess reagent) plus [x] mL of 0.0010M LR (limiting reagent) and diluted to 25.0 mL (total volume). What is the concentration of P (product)? ER (aq) + LR (aq) → P (aq) о O (Molarity of LR) + (Molarity of ER) 2 (Molarity in mol/L) x (Volume in L) = moles (Molarity of ER in mol/L) x (Volume of ER in L) x (1 mol P/1 mol ER) Total Volume in L (Molarity of LR) x (1 mol P/1 mol LR) Total Volume in L (Molarity of LR in mol/L) x (Volume of LR in L) x (1 mol P/1 mol LR) Total Volume in L

Introductory Chemistry: A Foundation

9th Edition

ISBN:9781337399425

Author:Steven S. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Donald J. DeCoste

Chapter15: Solutions

Section: Chapter Questions

Problem 39QAP: 39. Standard solutions of calcium ion used to test for water hardness are prepared by dissolving...

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On Easter Sunday, April 3, 1983, nitric acid spilled from a tank car near downtown Denver, Colorado. The spill was neutralized with sodium carbonate: 2HNO3(aq)+Na2CO3(aq)2NaNO3(aq)+H2O(l)+CO2(g) a. Calculate H for this reaction. Approximately 2.0 104 gal nitric acid was spilled. Assume that the acid was an aqueous solution containing 70.0% HNO3 by mass with a density of 1.42 glcm3. What mass of sodium carbonate was required for complete neutralization of the spill, and what quantity of heat was evolved? (Hf for NaNO3(aq) = 467 kJ/mol) b. According to The Denver Post for April 4, 1983, authorities feared that dangerous air pollution might occur during the neutralization. Considering the magnitude of H, what was their major concern?
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39. Standard solutions of calcium ion used to test for water hardness are prepared by dissolving pure calcium carbonate. CaCO3, in dilute hydrochloric acid. A 1.745-g sample of CaCO3 is placed in a 250.O-mL volumetric flask and dissolved in HCI. Then the solution is diluted to the calibration mark of the volumetric flask. Calculate the resulting molarity of calcium ion.
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