Question regarding #12, isn't the preferred Lewis structure of SO2 one where each Oxygen is double-bonded to the Sulfur atom, making the Sulfur's formal charge 0? If not, why is that?
Yes. The dominant Lewis Structure for SO2 is Sulfur with 2 double bond with oxygen and the sulfur formal charge will be zero. In this question I meant the initial lewis structure.
For number 25, how did you do that math with the specific heat capacity in Celcius, but then you multiplied by the temperature in K, then you canceled the K to Celcius and you were left with Joules? I thought Celcius was 273.15 different then K? Am I mistaken? Thanks for the videos!
thanks for this vid, just wanted to let you know there is some typos in the answer choices on the PDF
I got a 90 thanks to this review, thank you Dr. G!
You are welcome!
Thank you so much Dr. G! This video helped our study group so much, you explain chemistry so well!
Glad it was helpful!
Looked over this at study group, Thank you! Dr. G is the best!
You are welcome!
Thank you for the video Dr G!
Welcome!
thanks for the vid dr.G!!!
My pleasure!
Question regarding #12, isn't the preferred Lewis structure of SO2 one where each Oxygen is double-bonded to the Sulfur atom, making the Sulfur's formal charge 0? If not, why is that?
Yes. The dominant Lewis Structure for SO2 is Sulfur with 2 double bond with oxygen and the sulfur formal charge will be zero. In this question I meant the initial lewis structure.
Thank you Dr. G!
My pleasure!
I appreciate it!
You are very welcome
why is the formal charge on S in SO2 not zero? (question 12)
The Sulfur is +1 but the whole molecule charge is zero
Thank you! Just wondering if there’s a shortcut to know the bond order of individual atoms like what you did for question 22?
Not that I know of
@ no worries, thank you Dr. G!
For number 25, how did you do that math with the specific heat capacity in Celcius, but then you multiplied by the temperature in K, then you canceled the K to Celcius and you were left with Joules? I thought Celcius was 273.15 different then K? Am I mistaken? Thanks for the videos!
The value of delta T in Kelvin and Celcius is identical.