Enable contrast version

# Tutor profile: Gemma M.

Gemma M.
CRLA Level 1 Certified Tutor

## Questions

### Subject:Chemistry

TutorMe
Question:

If the volume of a container filled with argon gas is 31.0 L, the pressure is 1.0 atm, and the temperature is 75.0 degrees C, how many moles of argon are present in the container?

Gemma M.

Use the equation PV = nRT, where the gas constant R = 0.0821 L atm mol^-1 K^-1. Convert the temperature from Celsius to Kelvin, 75 + 273.15 = 348.15 K. Then simply plug everything in, giving (1 atm)(31 L) = n(0.0821 L atm mol^-1 K^-1)(348.15K). Solve for n using algebra, giving 1.1 moles of argon.

### Subject:Biochemistry

TutorMe
Question:

Which Watson-Crick base pair is more stable, C-G or A-T?

Gemma M.

C-G is the more stable base pair because cytosine and guanine have three hydrogen bonds between them, while the adenine and thymine base pair only have two hydrogen bonds between them.

### Subject:Biology

TutorMe
Question:

What is the heritable unit transferred from parent to offspring called?

Gemma M.

The heritable unit transferred from parent to offspring during reproduction is called a gene.

## FAQs

What is a lesson?
A lesson is virtual lesson space on our platform where you and a tutor can communicate. You'll have the option to communicate using video/audio as well as text chat. You can also upload documents, edit papers in real time and use our cutting-edge virtual whiteboard.
How do I begin a lesson?
If the tutor is currently online, you can click the "Start Lesson" button above. If they are offline, you can always send them a message to schedule a lesson.
Who are TutorMe tutors?
Many of our tutors are current college students or recent graduates of top-tier universities like MIT, Harvard and USC. TutorMe has thousands of top-quality tutors available to work with you.
BEST IN CLASS SINCE 2015
TutorMe homepage