What type of liquid is more likely to be volatile, a liquid with polar molecules or a liquid with nonpolar molecules?

Non-polar.

Explanation:

Hello,

In order to answer to this question, lets consider the toluene and the water because their bonds have a difference in the electronegativities of their composing elements of 0.35 and 1.24 respectively. In addition, toluene is non-polar and water polar.

Now, it is widely known that the toluene is volatile since its molecules in liquid phase tend to vaporize easily, this is due to the fact that the non-polar both bonds and intermolecular forces are weak (unstable) allowing the volatilisation to be performed. On the contrary, even thought the water is polar, it tends to be less volatile than the toluene since it bonds and intermolecular forces are stronger.

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given:

mass of na = 115 g

excess cl2

to determine:

mass of nacl produced

explanation:

given reaction is-

2na(s) + cl2(g) → 2nacl(s)

since cl2 is in excess, na will be the limiting reagent

as per the reaction stoichiometry na: nacl = 1: 1

i.e. moles of na reacted = moles of nacl formed

now, # moles of na = mass of na/atomic mass

                                  = 115 g/23 g.mol-1 = 5 moles

therefore, moles of nacl = 5

molar mass of nacl = 58 g/mol

mass of nacl = 5 moles * 58 g.mol-1 = 290 g

ans: amount of nacl produced = 290 g

d.) circle motion requires a force to give it a centripetal acceleration.