Explanation:
According to the Henderson Hasselbach equation,
pH =
pH =
The given data is as follows.
pH = 2.5
of side chain of glutamic acid = 4.1
Now, rearranging the equation as follows.
=
= 2.5 - 4.1
= -1.6
= Antilog (-1.6)
= 0.0251
or, =
Thus, we can conclude that the concentration ratio of the deprotonated form (glutamate) of the side chain Glu vs the protonated form (glutamic acid) in the vacuolar lumen of lemon fruit cells is .
<u><em>Answer:</em></u>
- A pure substance that contains more than one atom is called a compound.
<u><em>Explanation:</em></u>
- Compounds are formed by combination of atoms by a fixed ratio. They have their own characteristic features.
- Pure substances are further broken down into elements and compounds. A compound can be destroyed by chemical means. It might be broken down into simpler compounds, into its elements or a combination of the two.
<u><em>Example </em></u>
- H2SO4 which is formed by combination of three different atoms like H, S and O.
Answer:
Electronegativity (χ) is a chemical property that describes the tendency of an atom to attract a shared pair of electrons towards itself. Atoms with higher electronegativity attracts more electrons towards it, electrons are closer to that atom.
The answer is just as you say. A paper being shredded is a physical change.
Answer: The empirical formula is .
Explanation:
If percentage are given then we are taking total mass is 100 grams.
So, the mass of each element is equal to the percentage given.
Mass of C = 50.69 g
Mass of N= 19.71 g
Mass of H = 7.09 g
Mass of O = 22.51 g
Step 1 : convert given masses into moles.
Moles of C =
Moles of N=
Moles of H=
Moles of O =
Step 2 : For the mole ratio, divide each value of moles by the smallest number of moles calculated.
For C =
For N =
For H =
For O =
The ratio of C:N:H: O = 3:1:5:1
Hence the empirical formula is .