In many modern cars the fuel pump is usually electric and located inside the fuel tank. The pump creates positive pressure in the fuel lines, pushing the gasoline to the engine. The higher gasoline pressure raises the boiling point.
Answer:
Mass = 25.08 g
Explanation:
Given data:
Volume of fluorine = 29.6 L
Temperature = standard = 273.15 K
Pressure = standard = 1 atm
Mass of fluorine = ?
Solution:
The given problem will be solve by using general gas equation,
PV = nRT
P= Pressure
V = volume
n = number of moles
R = general gas constant = 0.0821 atm.L/ mol.K
T = temperature in kelvin
n = PV/RT
n = 1 atm × 29.6 L / 0.0821 atm.L/ mol.K × 273.15 K
n = 1.32 mol
Mass of fluorine:
Mass = number of moles × molar mass
Mass = 1.32 mol ×19 g/mol
Mass = 25.08 g
Answer:
235k
Explanation:
To solve this problem, we will use the general gas equation.
In its simplest form, the general gas equation can be represented as follows:
P1V1/T1 = P2V2/T2
P1 = 700mmHg
V1 = 760ml
T1 = 40 degrees Celsius = 40 + 273.15 = 313.15K ( conversion into standard temperature unit)
P2 = 1.25 atm
We have to covert this into the same unit as the first pressure.
760mmHg = 1atm
x mmHg = 1.25 atm
x = 1.25 * 760 = 950mmHg
V2 = 420ml
T2 = ?
Now, rearranging the equation will yield:
T2 = P2V2T1/P1V1
T2 = 950 * 420 * 313.5/700 * 760
T2 = 235.125K or -38.025 degrees celcius
Answer:
- Acetic acid (CH₃COOH) and hydronium ion (H₃O⁺)
Explanation:
Hello,
In this case, based on the acid-base theory which states that acids are known as H⁺ donors, if we consider the direct reaction:
It is clear that the acetic acid is the first H⁺ donor as it losses one H⁺ to turn into the acetate ion. Moreover, if we consider the inverse reaction:
It is also clear that the hydronium ion is the second H⁺ donor as it losses one H⁺ to turn into water.
Best regards.
Explanation:
Using the Combined Gas Law, which is:
<em>(With </em>
<em>being initial pressure, volume and temperature; and</em>
<em />
<em> being the new values)</em>
<em />
We can move the units around in order to solve for 
, which would look like this:
Then we convert the Celsius temperature to Kelvin:
°
= 
° = 
And now, we plug in all of the values and solve, with volume remaining as a constant:
<em>or </em>
