There are three sets of sketches below, showing the same pure molecular compound (water, molecu sketches are drawn as if a sample of water were under a microscope so powerful that individual ats Use the slider to choose the correct sketch in each set. You may need the following information melting point of H₂O: 0.00 boiling point of H,O: 100.0 °C 85. "C -27. C C 159. "C

There are three sets of sketches below, showing the same pure molecular compound (water, molecu sketches are drawn as if a sample of water were under a microscope so powerful that individual ats Use the slider to choose the correct sketch in each set. You may need the following information melting point of H₂O: 0.00 boiling point of H,O: 100.0 °C 85. "C -27. C C 159. "C

Chemistry for Today: General, Organic, and Biochemistry

9th Edition

ISBN:9781305960060

Author:Spencer L. Seager, Michael R. Slabaugh, Maren S. Hansen

Publisher:Spencer L. Seager, Michael R. Slabaugh, Maren S. Hansen

Chapter6: The States Of Matter

Section: Chapter Questions

Problem 6.70E

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What mass (g) of ethanol, CH3CH2OH(), can be vaporized at its boiling point of 78.4 C by transfer of 500. kJ to the liquid? The vapH of ethanol is 38.6 kJ/mol at this temperature.
Trichloroethane, C2H3Cl3, is the active ingredient in aerosols that claim to stain-proof men's ties. Trichloroethane has a vapor pressure of 100.0 mm Hg at 20.0C and boils at 74.1C. An uncovered cup (12pint) of trichloroethane (d=1.325g/mL) is kept in an 18-ft3 refrigerator at 39F. What percentage (by mass) of the trichloroethane is left as a liquid when equilibrium is established?
he enthalpy (H)of vaporization of water is about seven times larger than water’s enthalpy fusion(41kJ/molvs.6kJ/mol). What does this tell us about the relative similarities among the solid, liquid, and gaseous states of water?
he following demonstration takes place in a two-step process: rst, solid calcium carbide (CaC2j)reacts with liquid water to produce acetylene gas (C2H2)and aqueous calcium hydroxide. Second the acetylene gas produced is then ignited with a match, causing the combustion reaction of acetylene with oxygen gas to produce gaseous carbon dioxide and gaseous water. Write the balanced equations for each reaction that is occurring, including all phases. If a 100.0gsample of calcium carbide (CaC2)is initially reacted with 50.0gof water, which reactant is limiting? Now imagine that the final gases produced are collected in a large bulkier and allowed to cool to room temperature. Using the information from part b ( l00.0gof Cec2reacting with 50.0gof H2O), how many liters of carbon dioxide gas were produced in the balloon at a pressure of 1.00atm and 25C?
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How long (in seconds) would it take a 50.0 watt (1 watt = 1 J/s) heater to melt 10.02 g of Au(s) initially at its freezing point (1064 °C) to the boiling point (2807 °C) and then to completely vaporize it?
For the process: HXO2(g) ⇌ HXO2(l) if ΔH° is -39.04 kJ/mol and ΔS° is -111.74 J/(mol ∙ K). What is the normal boiling point of pure HXO2?
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A 337.2 g sample of acetone gas with a temperature of 56.0°C is converted to a liquid with a temperature of 56.0°C. How much heat is involved? Formula: C3H6OMelting Point: -94.0°CBoiling Point: 56.0°CDensity of liquid: 0.791 g/mLHeat of Fusion: 98.14 J/gHeat of vaporization: 538.9 J/gSpecific heat capacity (solid): 1.653 J/g°CSpecific heat capacity (liquid): 2.161 J/g°CSpecific heat capacity (gas): 1.291 J/g°C
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