At the end of the reaction you have $\pu{34 mg}$ of substance. As it converted in 74.5%, you have 25.5% of initial mass. So, initially you had $34\cdot\frac{100}{25.5}$.
If the volume is the same then divide the result in $\pu{25 mL}$ or the units you prefer.
In 1.5 months, I made small thesis edits and added Creative Commons stuff + put it on Github, did 3/5ths of deeplearning.ai, and a bunch of random stuff around the house...that's it
I guess I applied to a bunch of jobs and have done phone screens and an onsite...but life isn't structured so much anymore
yes, you can have less structure than grad school!
At the end of the reaction you have $\pu{34 mg}$ of substance. As it converted in 74.5%, you have 25.5% of initial mass. So, initially you had $34\cdot\frac{100}{25.5}$.
If the volume is the same then divide the result in $\pu{25 mL}$ or the units you prefer.
Spring Cleaning
Spring Cleaning