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Answer:
Net charge in serine at pH equal to 8.30 is "0"
Explanation:
- At pH >
, carboxyl group exists as
(charged)
- At pH <
- At pH >
(neutral)
- At pH <
(charged)
- So, at pH = 8.30, both carboxyl and amino group exists in charged state.
- Net charge in serine at pH equal to 8.30 is "0".
- Structure of serine at pH equal to 8.30 has been shown below.
We have a solution of NaOH and H₂CO₃
First, NaOH will dissociate into Na⁺ and OH⁻ ions
The Na⁺ ion will substitute one of the Hydrogen atoms on H₂CO₃ to form NaHCO₃
The H⁺ released from the substitution will bond with the OH⁻ ion to form a water molecule
If there were to be another NaOH molecule, a similar substitution will take place, substituting the second hydrogen from H₂CO₃ as well to form Na₂CO₃
Answer:
Explanation:
Hello!
In this case, since the molarity of magnesium chloride (molar mass = 95.211 g/mol) is 1.672 mol/L and we know the density of the solution, we can first compute the concentration in g/L as shown below:
Next, since the density of the solution is 1.137 g/mL, we can compute the concentration in g/g as shown below:
Which is also the by-mass fraction and in percent it turns out:
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