Answer:
307.80K
Explanation:
Mass = 0.2494g
Pressure = 1.26atm
Volume = 1.25L
Temperature (T) = ?
Molar mass of He = 4.0g/mol
To solve this question, we'll have to use ideal gas equation which is
PV = nRT
P = pressure of the gas
V = volume which the gas occupies
n = number of moles of the gas
R = ideal gas constant = 0.082J/mol.K
T = temperature of the ideal gas
n = number of moles = mass / molarmass
n = 0.2495 / 4.0
n = 0.0624moles
PV = nRT
T = PV / nR
T = (1.26 × 1.25) / (0.0624 × 0.082)
T = 1.575 / 0.0051168
T = 307.80K
The temperature of the gas is 307.80K
Answer:
electrons? not sure if im right tho
Answer:
A. 8
Explanation:
For this to be a neutral atom there has to be the same amount of protons and neutrons.
brainliest please. . .
Answer:
Nothing is shown below!!!
