What determines the ratio of ions of an ionic compound? ( see screenshot for options)
1 answer:
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Answer:
a)
b)
d)
d)
Explanation:
From the question we are told that:
Moles of N2
Atmospheric pressure
Temperature
Initial heat
a)
Generally the equation for change in temperature is mathematically given by
Where
b)
Generally the equation for ideal gas is mathematically given by
For v double
Therefore
Total Work-done
c)
Generally the equation for amount of heat added is mathematically given by
d)
Generally the equation for change in internal energy of the gas is mathematically given by
Answer:
1.62
Explanation:
From the given information:
number of moles of benzamide
= 0.58 mole
The molality =
= 0.6837
Using the formula:
where;
dT = freezing point = 27
l = Van't Hoff factor = 1
kf = freezing constant of the solvent
∴
2.7 °C = 1 × kf × 0.6837 m
kf = 2.7 °C/ 0.6837m
kf = 3.949 °C/m
number of moles of NH4Cl =
= 1.316 mol
The molality =
= 1.5484
Thus;
the above kf value is used in determining the Van't Hoff factor for NH4Cl
i.e.
9.9 = l × 3.949 × 1.5484 m
l = 1.62