Answer:
365.4 g/mol is the molar mass of this gas.
Explanation:
Using ideal gas equation:
PV = nRT
where,
P = Pressure of gas = 0.98 atm
V = Volume of gas = 1.5 L
n = number of moles of gas = ?
R = Gas constant = 0.0821 L.atm/mol.K
T = Temperature of gas = 287 K
Putting values in above equation, we get:
Moles of gas = n = 0.06239 mol
Mass of gas = m = 22.8 g
Molar mass of gas = M
365.4 g/mol is the molar mass of this gas.
Answer:
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Answer:
They are two different objects and they measure things differntly
Explanation:
<span>Answer:
CuX = Cu2+ + X2-
Ksp = [Cu2+] * [X2-]
for each mole of CuX that dissolves we get x mol of each of the anions and cations
Ksp = x^2 = 1.27 x 10 ^-36
x= 1.13 x 10 ^-18 moles of CuX per liter of pure water
if the solution has [Cu2+]= 0.27 M
Ksp becomes x ( x + 0.27)
as we can see above x is extremely small so can be ignored inside the brackets
0.27 x = 1.27 x 10^-36
x = 1.27 x 10^-36 / 0.27 = 4.70 x 10 ^-36 moles per liter
In 0.19M X2- we have
Ksp = 0.19x = 1.27 x 10^-36
x = 1.27 x 10^-36 / 0.19 = 6.68 x 10 ^-36 moles per liter</span>