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A wet pipette was used to transfer 10.00 mL of 1M HNO3 in the determination of ΔHrxn. [magnitude of ΔHrxn] Will there be an increase, decrease, or no effect? Why?

A wet pipette was used to transfer 10.00 mL of 1M HNO3 in the determination of ΔHrxn. [magnitude of ΔHrxn] Will there be an increase, decrease, or no effect? Why?

Chemistry: Principles and Practice
Chemistry: Principles and Practice
3rd Edition
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Chapter17: Chemcial Thermodynamics
Section: Chapter Questions
Problem 17.46QE
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1. A wet pipette was used to transfer 10.00 mL of 1M HNO3 in the determination of ΔHrxn. [magnitude of ΔHrxn] Will there be an increase, decrease, or no effect? Why?

2. The actual concentration of the sodium hydroxide used in the calibration part of the experiment was lower than the stated value. [Ccal] Will there be an increase, decrease, or no effect? Why?

3. The thermometer and stopper were inserted into the test tube 5 minutes after adding the base in the calibration part. [Ccal] Will there be an increase, decrease, or no effect? Why?

 

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