The charge is 0. the 25 protons cancel out with the charge of the 25 electrons and the 30 neutrons are neutral. So the charge is neutral and 0.
The original change is chemical, affecting the main colorant because of temperature. Paint, is a surface change, not changing anything about the leaf itself, but showing a different color to your eye.
Answer:
285.4 moles of gas are in a 35.0 L scuba canister if the temperature of the canister is 27.3 °C and the pressure is 200.8 atm.
Explanation:
An ideal gas is a theoretical gas that is considered to be composed of randomly moving point particles that do not interact with each other. Gases in general are ideal when they are at high temperatures and low pressures.
An ideal gas is characterized by three state variables: absolute pressure (P), volume (V), and absolute temperature (T). The relationship between them constitutes the ideal gas law, an equation that relates the three variables if the amount of substance, number of moles n, remains constant and where R is the molar constant of the gases:
P * V = n * R * T
In this case:
- P= 200.8 atm
- V= 35 L
- n=?
- R= 0.082
![\frac{atm*L}{mol* K}](https://tex.z-dn.net/?f=%5Cfrac%7Batm%2AL%7D%7Bmol%2A%20K%7D)
- T= 27.3 C= 300.3 K (being O C= 273 K)
Replacing:
200.8 atm* 35 L= n* 0.082
* 300.3 K
Solving:
![n=\frac{200.8 atm* 35 L}{0.082\frac{atm*L}{mol* K} * 300.3 K}](https://tex.z-dn.net/?f=n%3D%5Cfrac%7B200.8%20atm%2A%2035%20L%7D%7B0.082%5Cfrac%7Batm%2AL%7D%7Bmol%2A%20K%7D%20%2A%20300.3%20K%7D)
n= 285.4 moles
<u><em>285.4 moles of gas are in a 35.0 L scuba canister if the temperature of the canister is 27.3 °C and the pressure is 200.8 atm.</em></u>
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