Answer:
T₂ = 550.60 K
Explanation:
Given data:
Initial temperature = 16.3°C (16.3+273 = 289.3 K)
Initial pressure = 9.30 atm
Final temperature = ?
Final pressure = 17.7 atm
Solution:
According to Gay-Lussac Law,
The pressure of given amount of a gas is directly proportional to its temperature at constant volume and number of moles.
Mathematical relationship:
P₁/T₁ = P₂/T₂
Now we will put the values in formula:
9.30 atm / 289.3 K = 17.7 atm/T₂
T₂ = 17.7 atm × 289.3 K / 9.30 atm
T₂ = 5120.61 atm. K /9.30 atm
T₂ = 550.60 K
A covalent or molecular bond is the sharing of electrons between atoms. You can tell how many covalent bonds an atom can make by the number of electrons it has available to share along with using the octet rule which helps determine the number electrons that atoms can have in their outer most orbital, the maximum of eight, hence octet rule, from 1, 2, 3, or up to a maximum of r covalent bonds.
We know two equations that can help as answer:
n = m/Mr
- "n" --> number of moles
- "m" --> mass (kg)
- "Mr" --> molecular mass of the substance
n = V/Vm
- "V" --> volume of gas
- "Vm" --> a constant which value is 22.4 for STP conditions
So, combining the two equations above:
m/Mr = V/Vm
m = V×Mr/Vm
- V = 4.9L
- Mr = 38 *
- Vm = 22.4
m = 8.31 gr
*To calculate the Mr of "F2" we need to multiply by 2 the atomic mass of F, which we can find onlu by looking it up in a table (probaly in the back of a chemistry book, or online). We see that it is equal to 19, so Mr will be equal to 38.
**The equations are derived easily. Lets take for example the first one. 1 mole of the substance contains Mr gr of it. So, how many gr do "n" moles contain?
Answer:
A hole
Explanation:
put a hole in the barrel and let some water out