We can use the ideal gas law equation to find the volume of the balloon.
PV = nRT
where
P - pressure - 0.992 atm x 101 325 Pa/atm = 100 514 Pa
V - volume
n - number of moles - 8.80 mol
R - universal gas constant - 8.314 Jmol⁻¹K⁻¹
T - temperature in kelvin - 25 °C + 273 = 298 K
Substituting these values in the equation
100 514 Pa x V = 8.80 mol x 8.314 Jmol⁻¹K⁻¹ x 298 K
V = 217 L
volume of balloon is 217 L
The percent error of Chemistry student : 7.4%
<h3>
Further explanation
</h3>
Given
40 °C measurement
Required
The percent error
Solution
% Error : difference between the theoretical value and the actual value
or
% Error : Absolute Error / Accepted Value
Absolute Error = Measured Value - Accepted Value
% Error for Chemistry student :
1. Subtract the measurement value with the accepted value
= 40 °C - 43.2 °C
= -3.2 °C
2. Divide by the accepted value, and multiply by 100
= |-3.2/43.2| x 100%
= 7.4%
Half-life it tells you about the amount of time needed that half of the quantity of an isotope to disintegrate.
For carbon-14, assuming that the daughter isotope is a stable one and does not disintegrate further, you have:
<u>parent isotope</u> <u>daughter isotope</u> <u>years</u>
100% 0% 0
50% 50% 5,730
25% 75% 11,460
Answer:
An EL mechanism
Explanation:
I looked this up, it's called an EL mechanism
Answer:
Ans. C. physical change
Explanation:
Physical: boiling and melting are physical changes. When water boils no bonds are broken or formed
