61 Convert the boiling point of hydrogen chloride at standard pressure to Kelvins. [1]
HIGHLIGHT TO SEE THE ANSWER
NOTE= Kelvin is always positive. This Equation is found on the back of the Reference Tables K= 273 + (-84.9)= 188.1K |
62 Explain, in terms of molecular polarity, why hydrogen chloride is more soluble than methane in water at 20.°C and standard pressure. [1]
HIGHLIGHT TO SEE THE ANSWER
IN TERMS OF "molecular polarity"- use polar and nonpolar in answer Molecules of CH 4 are nonpolar, but molecules of HCl and H2O are both polar.Hydrogen chloride and water are both polar. |
63 Explain, in terms of intermolecular forces, why ammonia has a higher boiling point than the other compounds in the table. [1]
HIGHLIGHT TO SEE THE ANSWER
IN TERMS OF "intermolecular forces"- use strong or weak in answer Ammonia has stronger intermolecular forces than either methane or hydrogen chloride. Ammonia has hydrogen bonding. |