72 325
Assignments Done
98,8%
Successfully Done
In April 2019

Answer to Question #55834 in General Chemistry for Tracy Guido

Question #55834
I think I read a burette wrong --- in reading a burette should the final reading be higher or lower than the initial reading. I got a final reading of 27.49mL and an initial reading of 47.75mL. If I subtract the higher from the lower a will get a negative number?
Expert's answer
In this case you are interested in the difference volume, so it doesn`t actually matter what you put first and second in the subtraction, you can use resulting number anyway by just removing (-). However, more correct is of course to subtract smaller number from the bigger, like this:
V` = V(start) – V(end) = 47.75 - 27.49 = 20.26 (ml)
Also don`t forget to check meniscus correctly depending on the liquid you measure.

Need a fast expert's response?

Submit order

and get a quick answer at the best price

for any assignment or question with DETAILED EXPLANATIONS!

Comments

No comments. Be first!

Leave a comment

Ask Your question

Submit
Privacy policy Terms and Conditions