100. Draw ionic Lewis structures for KF and CaC. Use the in- formation and the method in the previous problem to pre- dict which of these two ionic solids has the higher melting point.

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Q: each, select the type of crystalline solid that would form.

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Q: How much heat in kJ is required to convert 916 g of ice at-11.0°C to liquid water at 99.0°C? 706

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Q: help would be appreciated

A: Given, Mass of NaCl = 67 g Heat of fusion of NaCl, △Hfus = 30.2 kJ/mol Molar mass of NaCl = 58.44…

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Q: Explain how crystalline and amorphous solids are organized. Give some examples emphasizing the…

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Q: Draw a simple iron–carbon phase diagram showing the liquid, liquid–solid,and solid phases.

A: Phase diagrams are graphical representations of the phases present in an alloy at different…

Q: How much heat in kJ is required to convert 916 g of ice at -11.0°C to liquid water at 99.0°C?

A: Ice undergo various transition from -11°C to 99°C and releases heat at each stage

Q: How much ice (in grams) would have to melt to lower the temperature of 352 mL of water from 25 °C to…

A: Given   The volume of water is 352 mL. The given temperature values are 25.0 ˚C and 5.0 ˚C. The…

Q: 8) If the heat of fusion for water is 80. cal/g, how many calories are needed to melt 45.0 g of ice…

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Q: energy in kJ

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Q: Rank the following ionic solids in order of decreasing melting points. NaCl Mgo BeO LiF Cas BeO >…

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Q: What do Molecular solids consist of?

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Q: how much heat does it take to melt 76.5 g, heat of fusion is 49.0 cal/g heat of vaporization is 1212…

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Q: For each pair, predict which one will have the higher value for vapor pressure when it is in the…

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Q: A solution was prepared by dissolving 18.00g glucose in 150.0g water. The resulting solution was…

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Q: The heat of vaporization for CH4 is 152 cal/g. How much heat is needed (in calories) to vaporize 0.4…

A: The heat of vaporization for CH4 is = 152 cal/g The amount of heat is needed (in calories) to…

Q: What phase occurs when beads of water form on a cold drinking glass?

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Q: i) ii) Magnesium has Silicon has a very high melting tempé Sulphur has a higher melting temperature…

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Q: A phase change graph is shown below. What is the melting point of this substance?

A: If a substance is gradually heated, it goes under the phase transitions as follows: Solid…

Q: The density of the solid phase of a substance is 0.90 g/cm3 and the density of the liquid phase is…

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Q: A solid substance has a vapor pressure of 100 mm Hg at the melting point (100°C). Assuming an…

A: According to the given information, a solid has a vapor pressure of 100 mm Hg at its melting point…

Q: The following information is given for antimony, Sb , at 1 atm: Boiling point = 1440.0°C   Heat of…

A: SOLUTION Mass of liquid antimony = 44.9 g Heat of fusion = 38.5 cal/g Energy removed = 38.5…

Q: kJ and its normal boiling point is 81. °C. Calculate the vapor pressure of X at -25. °C. The…

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Q: kJ and its normal boiling point is 24. °C. Calculate the vapor pressure of X at-95. °C. The enthalpy…

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Q: 5. Is the melting temperature of a substance different from its freezing temperature? Define the…

A: The melting point of a substance is same as that of its freezing point. At this particular…

Q: Chemicals Amount 1,4-dimethoxyBenzene 0.327 g (2.37 *10^-3 mol) t-butyl alcohol (density=0.781 g/mL)…

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Q: refer to picture* Which of the following will form an ionic solid? Select one: a.NH3 b.CS2 c.Ar…

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Q: The vapor pressure of a liquid doubles when the temperature is raised from 91°C to 99°C. At what…

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Q: A pure solid sample of Substance X is put into an evacuated flask. The flask is heated at a steady…

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Q: What are the strongest attractive forces that must be overcome to

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Q: Suppose that 0.95 g of water condenses on a 75.0 g block of iron that is initially at 22°C. If the…

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Q: Is vaporization an exothermic or endothermic process? Based on Le Châtelier’sprinciple, would you…

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Q: Please answer all parts 1,2 and 3

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Q: kJ and its normal boiling point is -103. °C. Calculate the vapor pressure of X at -137. °C. The…

A: The Clausius-Clapeyron equation is as follows,                       ln P=-∆HvapR1T+C  Given:…

Q: d. enthalpy of fusion

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Q: 1. State the differences between Amorphous solids versus Crystalline solids. 2. State the…

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Q: For the dissolving of KCl, which process or processes involve more energy- breaking ionic bonds and…

A: KCl is an ionic compound and when dissolved in water it will dissociate into its constituent ions.…

Q: Based on the image provided, select the one, or ones, with the least vapor pressure. A & B 275 K A…

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Q: 21. Which substance will lower the melting point of ice the most? a. NaCI b. KNO3 c. Ca Cl2 d. KBr

A: formula to calculate the depression in the freezing point is  delta T  = i Kf m here i is the van't…

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