Answer:
Allele
Explanation:
An allele is a variant form of a gene.some gene have a variety of different forms which are located at the same position or gentic locuson a chromosone. human are called diploid organisms becuase they jave two alleles at a each genitic locus with one allele inherited from each parent.
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An organism that breathes with its lungs, lays eggs and has feathers is a bird!
Answer:
58.32
Explanation:
The mass number is one mole and for Mg it is 24.306 for O it is 15.999 and for H it is 1.008. because O and H have 2, you multiply them by 2 and add all the numbers and it equals 58.32
<span>Hydroxide ions as the only negative ions</span>
Answer:
3.25
Explanation:
We don't have to do calculations with volumes and concentrations.
We just have to remember that, at the midpoint in the titration of a weak acid by a strong base,
pH = pKₐ
For formic acid,
pKₐ = 3.25, so, at the midpoint,
pH = 3.25
The first graph below shows the titration curve for your acid. The endpoint is at about 13 mL, so the midpoint is at 6.5 mL, and the pH is about 3.2.
In the second graph, the concentration of formic acid has increased by 50% to 0.573 mol·L⁻¹, so the endpoint has moved to about 19.5 mL and the midpoint is around 9.8 mL. However, the pH at the midpoint is still about 3.2.
This shows that the pH at the midpoint depends only on the pKₐ of the acid.