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Rom4ik [11]
2 years ago
11

A dental assistant is preparing to use a chemical that has a number 2 in a blue triangle on the chemical label. Before using the

chemical, the assistant reads the chemical label and determines the special precautions needed when working with this chemical. What does the information on the chemical label indicate
Chemistry
1 answer:
Effectus [21]2 years ago
5 0

Labels must clearly identify the chemical and include information on its hazards, plus instructions and information on its safe storage, handling, use, and disposal.

What does the information on the chemical label indicate?

The chemical label indicates the following information.

Product Identifier: The method used to identify the chemical (in the ingredient disclosure). On the label, include the complete chemical name or number that is used for the hazardous product. Both the label and SDS must have the same information. Abbreviations for chemicals are not accepted.

Signal Words: Assigned to a GHS hazard class and category, "Danger" or "Warning" are used to underline hazards and show the relative level of severity of the hazard.

Danger Statements: Typical expressions that are associated with a hazard class and category and that define the hazard's characteristics. On a label, there must be mention of every danger that applies.

Precautionary Statements: A term that describes actions that should be performed to reduce or eliminate negative effects brought on by exposure to or inappropriate storage of a substance.

Symbols (hazard pictograms): Convey information about environmental, physical, and health hazards that are categorized and allocated to a GHS hazard class.

Learn more about the chemical label here:

brainly.com/question/26092818

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Given pH = 3.50 Find: [H3O+] and [OH-] Is this acidic, basic or neutral?
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Answer:

Explanation:

Given parameters:

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Unknown:

    concentration of [H₃0⁺] = ?

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Solution:

In order to find the unknown, we use some simple expressions which best explains the pH scale and the equilibrium systems of aqueous solutions.

         pH = -log₁₀[H₃O⁺]

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          [H₃O⁺] = 3.2 x 10⁻⁴moldm⁻³

       

For the  [OH⁻]:

       we use : pOH = -log₁₀ [OH⁻]

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  Now we plug the value of pOH into pOH = -log₁₀ [OH⁻]

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The solution is acidic as the concentration of H₃0⁺ is more than that of the OH⁻ ions.

                   

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