Answer:
Temperature = 6.91K
Explanation:
Temperature = T
Number of Moles = 2.49moles
Volume = 1.0L
Pressure = 143kPa
R = 8.31kPa*L/mol.K
From ideal gas equation,
PV = nRT
P = pressure of the ideal gas
V = volume which the gas occupies
n = number of moles of the gas
R = ideal gas constant
T = temperature of the ideal gas
PV = nRT
T = PV / nR
T = (143 * 1) / (2.49 * 8.31)
T = 143 / 20.6919
T = 6.91K
The temperature of the gas is 6.91K
Answer:
Carbon contain 4 electrons in its valence shell.
Explanation:
Because, total no. of electrons in carbon are 6, so in first shell there are 2 electrons and hence 4 in valence shell.
Answer:
165.52 g/mol
Explanation:
Upon temperature was raised to 100 C part of the initial mass of liquid is gas, exactly: 2.00-0.581 = 1.419 g. This gas occupy a volume of approximately 265 mL, its pressure of 752 mm Hg and its temperature is 100 C. Assuming that this gas behaves as gas ideal we can estimate the molecular weight taking into account tha gas ideal law:
with R= 0.082 atm L/(mol K)
or
Before using of the formula, we need convert volume units to L (1L=1000 mL) pressure to atm (1 atm=760 mmHg) and temperature to K (K=273+C).
Finally, replacing in the formula
g/mol
Newton's 1st law of Physics!! -Mika :)
Answer: the scientist should ensure that the volume is measured in dm3(or L), the pressure in atm, the temperature in Kelvin and use the gas constant 0.082atm.dm3.K^-1.mol^-1