How many moles of aqueous ions will be produced from the dissolution of 1.0 mole of Na3[Fe(Cl)6] in water?
1 answer:
Answer:
four moles could be produced
Explanation:
The computation of the number of moles for producing from the dissolution is shown below:
Given that
It could be disassociated as
Therefore ions and 1
could be generated
And from 1 mole of ,
= 3 + 1
= 4 moles
Therefore four moles could be produced
By considering the above calculation we can easily determine the number of moles
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Answer:
The number of moles of oxygen present in the crew cabin at any given time is 615.309 moles
Explanation:
The given parameters are;
Volume of the crew cabin = 74,000 L
Pressure of the crew cabin = 1.00 atm
Percentage of nitrogen in the mixture of gases in the cabin = 80%
Percentage of oxygen in the mixture of gases in the cabin = 20%
Temperature of the cabin = 20°C = 293.15 K
Therefore, volume of oxygen in the crew cabin = 20% of 74,000 L
Hence, volume of oxygen in the crew cabin =
From the universal gas equation, we have;
Where:
n = Number of moles of oxygen
P = Pressure = 1.00 atm
V = Volume of oxygen = 14,800 L
T = Temperature = 293.15 K
R = Universal Gas Constant = 0.08205 L·atm/(mol·K)
Plugging in the values, we have;
The number of moles of oxygen present in the crew cabin at any given time = 615.309 moles.