When 6 M Hydrochloric Acid (HCl) Is Added To An Unknown White Solid, A Colorless Gas Is Produced. What Is A Possible Identity For This Solid?A. Calcium Nitrate B. Copper(II) Chloride C. Potassium Sulfate D. Sodium Carbonate

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When 6 M Hydrochloric Acid (HCl) is Added to an Unknown White Solid, a Colorless Gas is Produced: A Possible Identity for the Solid

In this discussion, we will explore the possible identity of an unknown white solid when 6 M hydrochloric acid (HCl) is added to it, resulting in the production of a colorless gas. This reaction is a classic example of a chemical reaction that can be used to identify the unknown solid.

The reaction between the unknown white solid and 6 M HCl can be represented by the following equation:

Unknown Solid + HCl → Colorless Gas + Water

The colorless gas produced in this reaction is likely to be hydrogen gas (H2), which is a common product of acid-base reactions.

Based on the reaction equation, we can infer that the unknown solid is likely to be a metal carbonate or a metal hydroxide. The possible identities for the unknown solid are:

  • Calcium carbonate (CaCO3): Calcium carbonate is a white solid that reacts with HCl to produce carbon dioxide gas (CO2), which is a colorless gas.
  • Copper(II) carbonate (CuCO3): Copper(II) carbonate is a white solid that reacts with HCl to produce carbon dioxide gas (CO2), which is a colorless gas.
  • Potassium carbonate (K2CO3): Potassium carbonate is a white solid that reacts with HCl to produce carbon dioxide gas (CO2), which is a colorless gas.
  • Sodium carbonate (Na2CO3): Sodium carbonate is a white solid that reacts with HCl to produce carbon dioxide gas (CO2), which is a colorless gas.

Let's analyze each option to determine which one is the most likely identity for the unknown solid.

  • A. Calcium nitrate (Ca(NO3)2): Calcium nitrate is a white solid that reacts with HCl to produce nitric acid (HNO3) and water. However, the reaction does not produce a colorless gas, so this option is unlikely.
  • B. Copper(II) chloride (CuCl2): Copper(II) chloride is a blue solid that reacts with HCl to produce copper(I) chloride (CuCl) and hydrogen chloride (HCl). However, the reaction does not produce a colorless gas, so this option is unlikely.
  • C. Potassium sulfate (K2SO4): Potassium sulfate is a white solid that reacts with HCl to produce sulfuric acid (H2SO4) and potassium chloride (KCl). However, the reaction does not produce a colorless gas, so this option is unlikely.
  • D. Sodium carbonate (Na2CO3): Sodium carbonate is a white solid that reacts with HCl to produce carbon dioxide gas (CO2), which is a colorless gas. This option is the most likely identity for the unknown solid.

Based on the analysis of the options, the most likely identity for the unknown white solid is sodium carbonate (Na2CO3). This solid reacts with 6 M HCl to produce carbon dioxide gas (CO2), which is a colorless gas. The reaction is a classic example of an acid-base reaction that can be used to identify the unknown solid.

  • "General Chemistry: Principles and Modern Applications" by John W. Hill, William S. McEuen, and Terry W. McCreary
  • "Chemistry: An Atoms First Approach" by Steven S. Zumdahl
  • "Chemistry: The Central Science" by Theodore L. Brown, H. Eugene LeMay, and Bruce E. Bursten
    Q&A: When 6 M Hydrochloric Acid (HCl) is Added to an Unknown White Solid, a Colorless Gas is Produced

In our previous discussion, we explored the possible identity of an unknown white solid when 6 M hydrochloric acid (HCl) is added to it, resulting in the production of a colorless gas. In this Q&A article, we will answer some common questions related to this topic.

A: The chemical reaction between the unknown white solid and 6 M HCl can be represented by the following equation:

Unknown Solid + HCl → Colorless Gas + Water

A: The colorless gas produced in this reaction is likely to be hydrogen gas (H2), which is a common product of acid-base reactions.

A: Based on the reaction equation, the possible identities for the unknown white solid are:

  • Calcium carbonate (CaCO3): Calcium carbonate is a white solid that reacts with HCl to produce carbon dioxide gas (CO2), which is a colorless gas.
  • Copper(II) carbonate (CuCO3): Copper(II) carbonate is a white solid that reacts with HCl to produce carbon dioxide gas (CO2), which is a colorless gas.
  • Potassium carbonate (K2CO3): Potassium carbonate is a white solid that reacts with HCl to produce carbon dioxide gas (CO2), which is a colorless gas.
  • Sodium carbonate (Na2CO3): Sodium carbonate is a white solid that reacts with HCl to produce carbon dioxide gas (CO2), which is a colorless gas.

A: To determine the identity of the unknown white solid, we can perform a series of chemical tests, including:

  • Acid-base titration: This test involves adding a known amount of HCl to the unknown solid and measuring the volume of HCl required to react with the solid.
  • Gas evolution: This test involves adding HCl to the unknown solid and measuring the volume of gas produced.
  • Spectroscopy: This test involves using spectroscopic techniques, such as infrared (IR) or nuclear magnetic resonance (NMR) spectroscopy, to identify the chemical structure of the unknown solid.

A: This reaction has several applications in various fields, including:

  • Chemical synthesis: This reaction can be used to synthesize various chemicals, such as carbon dioxide gas (CO2) and hydrogen gas (H2).
  • Environmental monitoring: This reaction can be used to monitor the levels of HCl and other acids in the environment.
  • Industrial processes: This reaction can be used in various industrial processes, such as the production of chemicals and the treatment of wastewater.

In this Q&A article, we have answered some common questions related to the reaction between 6 M hydrochloric acid (HCl) and an unknown white solid, resulting in the production of a colorless gas. We hope that this article has provided valuable information and insights into this topic.

  • "General Chemistry: Principles and Modern Applications" by John W. Hill, William S. McEuen, and Terry W. McCreary
  • "Chemistry: An Atoms First Approach" by Steven S. Zumdahl
  • "Chemistry: The Central Science" by Theodore L. Brown, H. Eugene LeMay, and Bruce E. Bursten