Answer those 2 questions Get it Together You have studied Intermolecular Forces,

Question

Answer those 2 questions Get it Together You have studied Intermolecular Forces, and you know that they influence many properties of matter such as melting and boiling points. Consider the solid forms of the following substances and the Intermolecular Forces that hold these materials together. Then, put them in order in terms of increasing melting point: sodium chloride, diamond, ice (solid water), carbon dioxide, helium, and hydrogen sulfide. Boiling by Cooling You fill flask about a tenth full with water and heat it over a flame. You boil the water rapidly for a few minutes and then quickly place a stopper over the top of the flask. You remove the flask from the flame and, after a few seconds, the water in the flask stops boiling. You then place the sealed flask under cold tap water and ellipsis the water starts boiling again!! When you make the tap water even colder, the water in the flask boils even faster! Explain in detail what's going on.

Explanation / Answer

Question 1.

solid forms:

Sodium Chloride, NaCl; 801 °C

Diamond = C(s,diamond) 3550°C

Ice = H2O(s); 0°C

Carbon Dioxide = CO2(s) (melting) 56.6; sublimation -78°C

Heliunm = He(s); -272.2

Hydrogen Sulfide = H2S (s); -82°C

strnogest: diamond, due to the covalent network it forms, then come NaCl, duie to the lattice between ionic bonds formed in the cation/anion. Then comes water, which has covalent bond + hydrogen bonding. After it comes CO2, which is lower, since CO2 is nonpolar, but has higher mass. Then nearest to it is H2S, whcih is almost nonpolar. Finally, He, which is the lowest, due to nonpolarity and low mass.

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