1)
14 moles of Ar
12 moles of N2
2 moles of BF3
If the total number of mol present in the mixture visualized is 1.43, calculate the number of mol of N2.
2)
11 moles of N2
4 moles of CSH4
If the total number of mol present in the mixture visualized is 1.68, calculate the number of mol of N2
I am not exactly sure of what is given.
1) if the mixture is 14 parts Ar, 12 parts N2, and 2 parts BF3, then
molesN2=1.43*12/28 moles
thats right
To calculate the number of moles of a specific substance in a mixture, you need to know the total number of moles of the mixture and the mole ratio of the substance in question to the total mixture.
1) In the given mixture, we have 14 moles of Ar, 12 moles of N2, and 2 moles of BF3.
To find the number of moles of N2, we first need to add up the moles of all the substances present in the mixture:
Total moles in the mixture = 14 moles of Ar + 12 moles of N2 + 2 moles of BF3 = 28 moles.
Since the total number of moles in the mixture is given as 1.43, we can set up a proportion to find the number of moles of N2:
(12 moles of N2) / (28 moles) = (x moles of N2) / (1.43 moles)
Cross-multiplying, we get:
12 moles of N2 * 1.43 moles = 28 moles * x moles
17.16 moles = 28x
Dividing both sides by 28, we find:
x = 17.16 moles / 28
x ≈ 0.613 moles
Therefore, the number of moles of N2 in the mixture is approximately 0.613 moles.
2) In the given mixture, we have 11 moles of N2 and 4 moles of CSH4.
To find the number of moles of N2, we first need to add up the moles of all the substances present in the mixture:
Total moles in the mixture = 11 moles of N2 + 4 moles of CSH4 = 15 moles.
Since the total number of moles in the mixture is given as 1.68, we can set up a proportion to find the number of moles of N2:
(11 moles of N2) / (15 moles) = (x moles of N2) / (1.68 moles)
Cross-multiplying, we get:
11 moles of N2 * 1.68 moles = 15 moles * x moles
18.48 moles = 15x
Dividing both sides by 15, we find:
x = 18.48 moles / 15
x ≈ 1.232 moles
Therefore, the number of moles of N2 in the mixture is approximately 1.232 moles.