How to solve any chemistry problem - practice problems - Real Chemistry

In this video we apply tricks used in the previous video to identify conversion factors in a word problem and then use them to solve problems. The first problem is a molarity problem (where molarity serves as a conversion factor to convert between moles and litters). In the second video we solve a drug dosing problem by identifying conversion factors.

Before working these problems its helpful to check out the video which introduces us to how to find conversion factors in all sorts of problems:

How to solve any chemistry problem, part 1:

[ScatrickFlorence]

Thank you so much for this! This is very helpful and breaks it down simply! I’ll be watching all of your videos!

[jrrebel]

You sound like seth rogan haha Thanks for the vid!

[ibrahimjklahai]

Please me to solve this problem
"(a)The masses of certain pharmaceutical have a mean value of 4 g with a standard deviation of 0.2 g. Assuming that the masses are normally distributed and a pharmaceutical is chosen at random, what is the probability that
(i) it has a mass between 3.55 and 3.85

(ii) differs from the average by less than 0.35 g

(b) If 1000 of the pharmaceutical from (a) above are taken, how many may be expected to weigh more than 3.7 g?"