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Biology: The Dynamic Science (Mind...

4th Edition
Peter J. Russell + 2 others
ISBN: 9781305389892

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BuyFindarrow_forward

Biology: The Dynamic Science (Mind...

4th Edition
Peter J. Russell + 2 others
ISBN: 9781305389892
Textbook Problem

Design an Experiment You know that adding NaOH to HCl results in the formation of common table salt, NaCl. You have a 0.5 M HCl solution. What weight of NaOH would you need to add to convert all of the HCl to NaCl? (Note: Chemical reactions have the potential to be dangerous. Please do not attempt to perform this reaction.)

Summary Introduction

To analyze:

The amount of NaOH in grams required to convert 0.5 M HCl to NaCl. 0.5 M (Molar) NaCl (Sodium chloride) is provided.

Introduction:

The amount of substance is represented in moles. One mole of a substance weighs equal to its molar mass. The molarity is defined as a number of moles of solute present in 1L(liter) of the solution. The acids and bases neutralize each other to form salt and water in stoichiometric amounts, that is, one unit of proton reacts with one unit of hydroxide.

Explanation

0.5 M HCl (hydrochloric acid) is provided.

So, 0.5 moles of HCl are present in 1 liter.

HCl and NaOH (sodium hydroxide) reacts as per the following equation:

HCl + NaOH  NaCl + H2O

1 mole of HCl reacts with 1 mole of NaOH as per the balanced equation. So, 0.5 moles will react with 0.5 moles of NaOH

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