Answer:
2.3 L
Explanation:
when you have this eqaution you use P1V1T2=P2V2T1.
since you are looking for volume of gas cylinder that means you are looking for V2.
so you have your given P= 1.0 atm, V=2.5L, T=298K.
They ask you to use STP or standard pressure and temperature.
STP P= 1atm, STP T=273 K
so you are looking for V2 meaning you are going to get V alone so your new equation is P1*V1*TS/ P2* T1= V2
so you now substitue so its now 1*273*2.5/ 1* 298= V
682.5/ 298= V
Lastly V= 2.2902 and you round to tenths so now you have
V= 2.3 L
Thermosoftening plastics melt when they are heated.This means that they can be recycled , which involves melting them before making a new product. Thermosoftening plastics do not have covalent bonds between neighbouring polymer molecules, so the molecules can move over each other when heated and the plastic melts.
Titration reactions involve the implementation of carefully monitored concentrations of acids or bases. In this case, the NaOH being put into the buret has been “standardized,” or very carefully created to have a precise concentration to use in calculation.
Washing the buret our with water will help to clear out other contaminants, but the adherence of water to the sides of the buret will affect the concentration of the solution put inside of it. By adding water to the solution, it is being diluted to a small degree, which will tip the equations in the wrong direction to say that the unknown being tested is MORE concentrated than it actually is, because more liquid is required to titrate it to completion.
Answer:
what is a system at equilibrium?