(Please answer all Questions) The mixture of solids in this experiment can be cl

Question

(Please answer all Questions)

The mixture of solids in this experiment can be classified as _____.

Question 1 options:

homogeneous

heterogeneous

Question 2

Which substance(s) in this experiment are soluble in DCM?

Question 2 options:

the organic compound

the metal chloride

the metal carbonate

Question 3 (1 point)

Which substance(s) in this experiment are soluble in H2O?

Question 3 options:

the organic compound

the metal chloride

the metal carbonate

Question 4 (1 point)

Which properties will be used to identify the organic compound in this experiment?

Question 4 options:

anion test

melting point

boiling point

solubility

cation test

Question 5 (1 point)

Which properties will be used to identify the metal chloride in this experiment?

Question 5 options:

melting point

anion test

cation test

solubility

boiling point

Question 6 (1 point)

Which properties will be used to identify the metal carbonate in this experiment?

Question 6 options:

cation test

anion test

melting point

solubility

boiling point

Question 7 (1 point)

Describe the hazardous effects of dichloromethane (DCM).

homogeneous

heterogeneous

Background In this experiment, a mixture of two or three compounds will be separated into pure substances and is a combination oftwo or more pure substances. Mixtures can be homogeneous identified. A mixture (constant composition) or heterogeneous (variable composition). Physical processes will be used to separate the mixture into pure substances. These processes include extraction and filtration. Extraction is a technique used to separate compounds based on their solubility in a solvent. Likes dissolve likes a common expression in chemistry. It refers to the fact that a solute will most likely dissolve into a solvent with similar properties and characteristics, mainly polarity Polar solutes dissolve into polar solvents and nonpolar solutes dissolve into nonpolar solvents. For ionic compounds, solubility rules dictate which substances are soluble in water and which are not. Dichlo romethane (DCM) and distilled water will be used as extracting solvents in this experiment. CAUTION! DCM is an organic solvent. Avoid skin contact and inhalation of this sub- stance. DCM vapors may cause dizziness, headaches, nausea, and in severe cases, loss of consciousness or death. Evaporation of this solvent is to be done in a fume hood. from To complete an extraction, filtration is often used to separate the soluble substances (solution) the substances (solid). Two types of filtration will be used in this experiment, gravity filtration and vacuum filtration. Gravity filtration utilized the force of as the driving force in the separation. Vacuum filtration utilized a low pressure (vacuum) as the driving force in the separation. Gravity filtration is mainly used to filter large particles from a solution, whereas vacuum filtration i used to filter small particles from a solution. In this experiment, gravity filtration may be suitable b itself to accomplish the separation The identification of each compound is accomplished by observing physical and chemical prop erties. The physical properties utilized in this experiment include melting point and solubility. Melt ing point is the temperature at which a solid turns to liquid at atmospheric pressure. Solubility the is ability of a substance to dissolve within another substance. The chemical properties utilized in this experiment include chemical reactions in the form of cation and anion tests. Cation tests will the identity ofthe positive ions the compounds. Anion tests will in com determine the identity of the negative ions present in the ionic pounds. The cation tests include flame tests and qualitative tests. The anion tests are also qualitative tests. A flame test is accomplished by dipping a Nichrome wire into the substance to be tested, and 41

Explanation / Answer

Answer:

1) Heterogeneous

2) The organic compounds are soluble in DCM

3) Metal chloride and metal carbonates are soluble in water

4) To Identify the organic compound, melting and boiling point properties was used.

5) To Identify the metal chloride, anion and cation tests was used.

6) To Identify metal carbonate, anion, cation and solubility tests was used.

7) Causes dizziness, headaches, nausea and in severe cases loss of consciousness or death.

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