The subscript is the amount of atoms in each molecule and the coefficient is the amount of molecules. there are 4 Hydrogen, 2 Sulfur, and 8 Oxygen in this particular substance.
According to Henderson–Hasselbalch Equation,
pH = pKa + log [Acetate] / [Acetic Acid]
As,
pKa = -log Ka
pKa = -log (1.8 × 10⁻⁵)
pKa = 4.74
So,
pH = 4.74 + log [Acetate] / [Acetic Acid]
4.34 = 4.74 + log [Acetate] / [Acetic Acid]
4.34 - 4.74 = log [Acetate] / [Acetic Acid]
-0.40 = log [Acetate] / [Acetic Acid]
Taking Antilog on both sides,
[Acetate] / [Acetic Acid] = 0.398
Answer:
<em><u>B. Ethylene can be chemically changed to become polyethylene.</u></em>
Explanation:
You can make polyethylene by purifying a quantity of ethylene.
Answer:
3)Some gas molecules move further apart and some move closer together.
Explanation:
because When more gas particles enter a container, there is less space for the particles to spread out, and they become compressed. The particles exert more force on the interior volume of the container. This force is called pressure. There are several units used to express pressure.
Answer:
-. D
6. A
Explanation:
Chromosomes are presented in a genotype. Chromosomes are structures within a cell that contains a person's gene while genotype is an individual collection of genes. Therefore genotype reflect the chromosomes present in cell
6. Genetic diseases differ from other diseases because recurrence risk is predictable since genes are transferred from parent to offspring and therefore the diseases are transferred from parent to offspring
