Tyler Roberts

Numerade Educator
Teaching Assistant

Biography

I'm passionate about students' positive experience in science education and tend to focus on exercising critical thinking rather than rote memorization.

Education

Tyler has not yet added their education credentials.

Educator Statistics

Numerade tutor for 5 years
31 Students Helped

Topics Covered

Atoms, Molecules, and Ions: Understanding the Building Blocks of Matter
Unlocking the Power of Composition: Tips and Techniques
Understanding Electronic Structure: A Comprehensive Guide
Exploring the Structure and Stereochemistry of Alkanes

Tyler's Textbook Answer Videos

04:59
Organic Chemistry

Draw structures corresponding to the following IUPAC names:
(a) 1,1 -Dimethylcyclooctane
(b) 3 -Cyclobutylhexane
(c) 1,2 -Dichlorocyclopentane
(d) 1,3 -Dibromo-5-methylcyclohexane

Chapter 4: Organic Compounds: Cycloalkanes and Their Stereochemistry
Tyler Roberts
03:03
Organic Chemistry

Name the following cycloalkane:

Chapter 4: Organic Compounds: Cycloalkanes and Their Stereochemistry
Tyler Roberts
00:38
Organic Chemistry

Prostaglandin $\mathrm{F}_{2 \alpha}$, a hormone that causes uterine contraction during childbirth, has the following structure. Are the two hydroxyl groups $(-\mathrm{OH})$ on the cyclopentane ring cis or trans to each other? What about the two carbon chains attached to the ring?

Chapter 4: Organic Compounds: Cycloalkanes and Their Stereochemistry
Tyler Roberts
01:02
Organic Chemistry

Two conformations of $c i s-1,3$ -dimethylcyclobutane are shown. What is the difference between them, and which do you think is likely to be more stable?

Chapter 4: Organic Compounds: Cycloalkanes and Their Stereochemistry
Tyler Roberts
02:24
Organic Chemistry

The following cyclohexane derivative has three substituents-red, green, and blue. Identify each substituent as axial or equatorial, and identify each pair of relationships (red-blue, red-green, and bluegreen) as cis or trans.

Chapter 4: Organic Compounds: Cycloalkanes and Their Stereochemistry
Tyler Roberts
1 2 3

Tyler's Quick Ask Videos

08:40
Chemistry 101

Following are stereo representations for the three stereoisomers of 2,3-butanediol. The carbons are numbered beginning from the left, as shown in (1). Answer the last three questions using integer numbers of 1,2&3.
Assign an R or S configuration to each chiral center.
(1) (2 ,3 )-2,3-butanediol
(2) (2 ,3 )-2,3-butanediol
(3) (2 ,3 )-2,3-butanediol
Which are enantiomers? &
Which is the meso compound?
Which are diastereomers? & , &

Tyler Roberts
07:45
Chemistry 101

Complete the "PRIOR TO CLASS" calculations Prior to Class Calculations: Calculate the volume and mass required to make 100 mL of 0.100 M solution of your assigned acids and conjugate bases. See the procedure on page 4 for concentrations and molar masses. You will have 2 assigned acid/conjugate base.

Tyler Roberts
06:31
Chemistry 101

If you have a solution of 0.10 M CH3COOH (acetic acid), do you expect the pH of the solution to be less than 1, equal to 1, or greater than 1? (It is not necessary to do any calculations, but you must explain your reasoning.)

Tyler Roberts
02:47
Biology

In a microbiology lab, you have a bottle (600 ml) of SM NaCl solution. You want to use only 100 ml of 0.5M NaCl solution. Which of the following practices is correct?
1) Add 100 ml of SM NaCl to a container and bring the volume to 100 ml with water.
2) Add 100 ml of SM NaCl to a container and bring the volume to 100 ml with water.
3) Add 10 ml of SM NaCl to a container and bring the volume to 100 ml with water.
4) Add 10 ml of 5M NaCl to a container and bring the volume to 1000 ml with water.
b) What is the final concentration of solution 2) and 4)? Why?
c) How much water is needed to make solution 2)? How much water is needed to make solution 4)?

Tyler Roberts
06:05
Chemistry 101

Given the following scenario with the unknown reaction observed in the reaction mechanism lab, what conclusions (if any) can be made?

You observed that if you shook the solution in an open flask, the color changed from clear to blue. After sitting, the color disappeared. When the air was completely replaced with nitrogen in a sealed flask, shaking the clear solution for several minutes led to no observed color change.

Select all that are True.
Oxygen is necessary for the reaction to occur.
Nitrogen is not involved in the color changing reaction.
The fact that the solution returned to colorless after turning blue, shows that the system is an equilibrium.

Tyler Roberts
04:57
Organic Chemistry

Locate the tetrahedral stereogenic center(s) in each compound. A molecule may have one or more stereogenic centers.

Tyler Roberts
1 2 3