Describe one human health impact of air pollution from coal burning.
2 answers:
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Explanation:
a. Vanillin(4-hydroxy-3-methoxybenzaldehyde):
In its structure hydroxl group will be present on para position of the benzaldehyde ring and methoxy group on meta position.
b. Thymol (2-isopropyl-5-methylphenol):
In its structure isopropyl group will be present on ortho position of the phenol ring and methyl group on meta position.
c. Carvacrol (5-isopropyl-2-methylphenol):
In its structure isopropyl group will be present opposite to methyl group which is present ortho position in a phenol ring.
d. Eugenol (4-allyl-2-methoxyphenol):.
In its structure allyl group will be present on para position of the phenol ring and methoxy group on ortho position.
e. Gallic acid (3,4,5-trihydroxybenzoic acid):
In its structure hydroxyl group will be present on both meta positions and on para position of the benzoic acid ring.
f. Salicyl alcohol (o-hydroxybenzyl alcohol):
In its structure, group is linkedto benzene ring and in respect to that hydroxyl group is present at ortho position of the ring.
Answer:
2.25 atm
Explanation:
Given data
- Pressure of N₂: 321 kPa
- Pressure of O₂: 74.0 psi
- Pressure of H₂: ?
- Total pressure: 10.46 atm
Step 1: Convert the pressure of nitrogen to atm
We will use the relationship 1 atm = 101.325 kPa.
Step 2: Convert the pressure of oxygen to atm
We will use the relationship 1 atm = 14.6959 psi.
Step 3: Calculate the partial pressure of hydrogen
The total pressure is the sum of the partial pressures.
P = pN₂ + pO₂ + pH₂
pH₂ = P - pN₂ - pO₂
pH₂ = 10.46 atm - 3.17 atm - 5.04 atm
pH₂ = 2.25 atm