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A sample of pure oxalic acid (H2C2O4 · 2H2O) weighs 0.2000 gram and requires 30.12 ml of potassium hydroxide solution for complete neutralization. What is the normality of the KOH solution? 4.

A sample of pure oxalic acid (H2C2O4 · 2H2O) weighs 0.2000 gram and requires 30.12 ml of potassium hydroxide solution for complete neutralization. What is the normality of the KOH solution? 4.

Chemistry
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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Just number 4 pls. and express the answer up to 4 decimal places. TYIA

What is the normality of a solution that contains 2.5 grams of Na:S2O3.5H20 in 500 ml water? 1. 2. The amount of phosphorus present in a sample at a given time is given by the following equation: Q, = Qoe-0.031 What percent of the initial amount of phosphorus is left after 25 days of decay? If there are 37 kg of the element left after 25 days,in prob 3, what was the initial amount of the element? 3. A sample of pure oxalic acid (H2C204 2H2O) weighs 0.2000 gram and requires 30.12 ml of potassium hydroxide solution for complete neutralization. What is the normality of the KOH solution? 4.
Transcribed Image Text:What is the normality of a solution that contains 2.5 grams of Na:S2O3.5H20 in 500 ml water? 1. 2. The amount of phosphorus present in a sample at a given time is given by the following equation: Q, = Qoe-0.031 What percent of the initial amount of phosphorus is left after 25 days of decay? If there are 37 kg of the element left after 25 days,in prob 3, what was the initial amount of the element? 3. A sample of pure oxalic acid (H2C204 2H2O) weighs 0.2000 gram and requires 30.12 ml of potassium hydroxide solution for complete neutralization. What is the normality of the KOH solution? 4.
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