Dimethyl ether has the following structure.

(b) Which of the following illustrations depicts the hydrogen bonding that occurs between dimethyl ether and water? (i)

(ii)

Video transcript

Hello everyone today. We are being given the falling problem. The structure of tetra hydro ferrin or th F. Is given below. Which of the two illustrations below correctly shows the hydrogen bonding interactions between a tetra hydro Furin molecule and a water molecule. So first it's important to recall what hydrogen bonding is or looks like. So hydrogen bonding is essentially when a hydrogen atom is bonded to a highly electro negative atom, such as flooring oxygen or nitrogen. And so these are the three examples of hydrogen bonding due to the higher electro negativity of oxygen, oxygen in this example is going to have a partial negative charge. And so that leaves the hydrogen to have a partial positive charge. If you look at illustration a we see there's an interaction between two oxygen atoms. Both oxygen atoms have lone pairs and as we discussed before have a partial negative charge and so opposite charges, opposite charges are going to repel one another. So this interaction is very unfavorable and not an example of hydrogen bonding. If we look at illustration B, we see we have an interaction between the oxygen here which has the partial negative charge and the hydrogen which has a partial positive charge. As we discussed earlier, this is a favorable reaction because opposites attract so opposite charges attract earlier. I misspoke and stated that illustration ahead opposite charges. However, to correct that it is that it is like charges that repel opposite charges attract. And so that leaves answer choice B. Where illustration B. To correctly show hydrogen bonding interactions between our tetra hydro foreign molecule and a water molecule. Overall, I hope that this helped, and until next time.