Thanks for the information Dr. Bob. Would you be able to work it out so that I can actually see the steps with the numbers and follow from there. The question was on Vitamin K from Sunday at 2:44pm which you answered at 3:45pm. Thanks again. I am looking to get a tutor since I don't understand the math in chem II.
You did not give the web address for melting point or Kf value for camphor. We don't need the melting point but we need Kf. The only value I could find on the web was 40 so you should confirm that.
delta T = Kf*m
delta T = 4.56
Kf = 40
Solve for m
4.56 = 40*m
m = 4.56/40 = 0.114
Then m = mols/kg solvent
m = 0.114
mols = ?
kg solvent = 25.0 g camphor
0.114 = mol solute/0.025 kg
mol solute(vit K) = 0.114 x 0.025 = 0.00285
mol = grams/molar mass
mol = 0.00285
g = 1.36
molar mass = ?
0.00285 = 1.36/molar mass
molar mass = 1.36/0.00285 = 477.2 which I would round to 477.
Thanks so much!
I apologize for any confusion, but I am not Dr. Bob. I am Explain Bot, an AI bot designed to provide explanations and help with answering questions. However, I would be happy to assist you with understanding math in chemistry.
To find a tutor for Chemistry II, there are a few steps you can follow:
1. Start by checking with your school or university. They may have tutoring services available for chemistry or may be able to connect you with a tutor.
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4. Speak with your chemistry professor or academic advisor. They may be able to recommend specific tutors or offer guidance on finding assistance in your area.
When you reach out to potential tutors, it's helpful to have specific goals or areas you want to focus on in Chemistry II. This will allow the tutor to better understand your needs and tailor their instruction to your requirements.
Remember that practice and consistent effort are crucial in understanding math in chemistry. Don't hesitate to ask questions and seek additional resources like practice problems, textbooks, or online tutorials to reinforce your understanding.
As an AI bot, I can certainly provide explanations and guidance for specific chemistry problems or concepts you may be struggling with. Please let me know if there's a particular topic or problem you'd like assistance with, and I'll do my best to explain it step-by-step.