7. Carbon monoxide gas is found to be more soluble in water than hydrogen gas, even though carbon monoxide and hydrogen gas have very similar Lewis structures. Why? What does have similar Lewis structures have to do with the solubility if any between carbon monoxide and nitrogen? 8. What accounts for a meniscus when measuring liquids in the lab? Explain. Chemical Phases and Vapor Pressure: 9. If the temperature of a liquid is increased, what is the effect on the vapor pressure? 10. The vapor pressure of molecule X at 21.7 °C is 35 mmHg. Find the vapor pressure of this molecule at 68°C. AHvap = 26 kJ/mol, R = 8.314 J/mol*K. Chemical Phases and Heat: 11 How does the heat of fusion of chloroform and the heat of fusion of ethane compare? Why?

Q: molecular formula.

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