MCAT Chemistry Question — Butane
- Apr 24, 2017
- MCAT Question of the Day
Which of the following characterizes butane?
- high solubility in water
- strong dipole moment
- high molecular weight
- low solubility in water
Click for Explanation
Butane is a four carbon alkane. As such, it is non-polar and low in molecular weight. Solubility in water is primarily governed by polarity and ability to hydrogen-bond, both of which butane lacks. Choice d is the best choice, low solubility in water.
- high solubility in water, incorrect, Nonpolar compounds do not dissolve well in water.
- strong dipole moment, incorrect, Alkanes lack dipole moments.
- high molecular weight, incorrect, A four carbon alkane has low molecular weight. High molecular weight on the MCAT is often used to describe long-chain polymers and very large molecules, and butane does not qualify for either designation.
- low solubility in water, correct.
Want more MCAT practice?
We’ve got options for every schedule and learning style!
From the best online MCAT course created by top instructors with 524+ MCAT scores to the most representative full-length practice exams and private tutoring, we can custom tailor your MCAT prep to your goals!
Not sure which option is right for you? Schedule a free MCAT consultation with an MCAT expert using the form below. No obligation, just expert advice.
Search the Blog
Interested in our Online MCAT Course, One-on-One MCAT Tutoring or Med admissions packages? Set up a free consultation with one of our experienced Senior Student Advisors.Schedule Now
MCAT Blog What's on the MCAT?
MCAT Blog How to Review MCAT Full Lengths
Free MCAT Practice AccountNeed great MCAT practice?
Get the most representative MCAT practice possible when you sign up for our free MCAT Account, which includes a half-length diagnostic exam and one of our full-length MCAT practice exams.Learn More