Hydrofluoric acid (solution of HF in water), is a colorless solution. Its exact physical properties (boiling point, melting point and density) depend on the concentration of HF in the aqueous solution. Chemical properties: Hydrofluoric acid is a very strong, reactive and corrosive acid. It readily reacts with bases, acids, and oxidants.
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6. Which of the following substances should have the highest boiling point? A) CH4 B) Cl2 C) Kr D) CH3Cl E) N2. 7. Which of the following substances should have the lowest boiling point? A) CBr4 B) CBr3F C) CBr2F2 D) CBrF3 E) CF4. 8. Which of the following liquids would have the highest viscosity at 25°C?
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CBr4<CHBr3<CH2Br2<CH2Cl2<CH3Cl<CH4. CH4<CH3Cl<CH2Cl2<CH2Br2<CHBr3<CBr4 By analogy to attractive forces in HCl, the trend will be dominated by dispersion forces, even though four of the molecules are polar. The order of increasing boiling point is the order of increasing molar mass and increasing strength of dispersion forces.
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Apr 07, 2020 · The molecule known as CH4, or methane, is affected by van der Waals forces between individual molecules. Van der Waals forces are created when the molecule temporarily becomes electrically charged due to the natural movement of electrons across the shared bonds of the atoms making up the molecule.
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EXAMPLE – Predicting Molecular Polarity: . Decide whether the molecules represented by the following formulas are polar or nonpolar. (You may need to draw Lewis structures and geometric sketches to do so.)
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The normal boiling point of the substance with the phase diagram shown above is _____°C. a. 10 b. 20 c. 30 d. 40 e. 50 28. The phase diagram of a substance is shown above. The area labeled _____ indicates the gas phase for the substance. a. w b. x c. y d. z e. y and z 29. According to the phase diagram shown above, the