1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Alborosie
3 years ago
13

Acid dissociation reaction for E-amino group (side chain of Lys): (R)E-NH3+ # (R)E-NH2 + A. For a weak acid such as the side cha

in &-amino group of a lysine residue in a protein, if the pKa of that specific residue's E-amino group is exactly 10.0, in an environment in which the pH = 9.0, what would be the ratio of base to acid ( [ε-NH2]/[ε-NH3+1 )?
Chemistry
1 answer:
Andrew [12]3 years ago
7 0

Answer:

0.1

Explanation:

According  \ to \  Henderson    \ Hasselbalch \  equation:

pH = pka + log \dfrac{[A^-]}{[HA]}

From the given question;

log \dfrac{[\varepsilon- NH_2]}{[\varepsilon - NH_3^+]}=pH - pKa

\implies log \dfrac{[\varepsilon- NH_2]}{[\varepsilon - NH_3^+]}=9 -10

\implies log \dfrac{[\varepsilon- NH_2]}{[\varepsilon - NH_3^+]}=-1

\implies  \dfrac{[\varepsilon- NH_2]}{[\varepsilon - NH_3^+]}=10^{-1}

\implies  \dfrac{[\varepsilon- NH_2]}{[\varepsilon - NH_3^+]}=0.1

You might be interested in
Two students are engaged in an argument about whether or not a plant can live independently inside of a sealed jar for up to two
MrRa [10]

Answer:

where's the diagram?

Explanation:

the best answer is student A

3 0
3 years ago
Atoms of one element change into atoms of another element during chemical equations
Wewaii [24]
True is the answer yw
3 0
3 years ago
Balance this equation. If a coefficient of "1" is required, choose "blank" for that box.
Kitty [74]

Answer: 2 C2H4 + 6 O2 => 4 CO2 + 4 H2O

Explanation:The coefficient are as follows: 2: 6: 4: 4

Each atom on the reactant and product side are equal.

Reactant Product

C 2x2 = 4 4x1 = 4

H 2x4 = 8 4x2 = 8

O 6x2 = 12 (4x2) + 4 = 12

7 0
3 years ago
Consider the reaction represented by the equation?2SO2(g) + O2(g) 2SO3(g).?For the system at chemical equilibrium, which of the
rewona [7]

Answer:

b. The amount of SO3(g) decreases and the value for K increases.

Explanation:

Hello,

In this case, for the given reaction:

2SO_2(g) + O_2(g)\rightleftharpoons  2SO_3(g)

The change in the stoichiometric coefficient is:

\Delta \nu=2-2-1=-1

In such a way, since the reagents have more moles than the products, based on Le Chatelier's principle, if the volume is increased, the side with more moles is favored. In addition, since the formation of reagent is favored, K is diminished based on the law of mass action shown below:

K=\frac{[SO_3]_{eq}^2}{[SO_2]_{eq}^2[O_2]_{eq}}

Therefore the answer is:

b. The amount of SO3(g) decreases and the value for K increases.

Best regards.

3 0
4 years ago
what mass of Fe2O3 is produced in the reaction in the table above mass of reactants= 223.4 g Fe+96.0 g O2. and mass of products=
Ganezh [65]

Answer:

AS ACCORDING TO THE LAW OF MASS CONSERVATION

REACTANTS =PRODUCTS

THEREFORE,

223.4+96=MASS OF FE2O3

=319.4 FE203

4 0
3 years ago
Other questions:
  • 4.82 g of an unknown metal is heated to 115.0∘C and then placed in 35 mL of water at 28.7∘C, which then heats up to 34.5∘C. What
    8·1 answer
  • A sample of oxygen gas has a volume of 3.24 L at 29°C. What volume will it occupy at 104°C if the pressure and number of mol are
    10·1 answer
  • You need to produce a buffer solution that has a pH of 5.03. You already have a solution that contains 10. mmol (millimoles) of
    9·1 answer
  • From the standpoint of entropy, consider the following processes: water boiling, mixing cola and root beer sodas, and assembling
    15·1 answer
  • Arrange the compounds in order from highest to lowest boiling point. Consider how noncovalent interactions would affect the boil
    10·1 answer
  • Whichof the following is another name for science
    13·1 answer
  • Explain why elements with low electronegativities can conduct electricity
    5·1 answer
  • Please help-- 16 pts!
    5·1 answer
  • Consider the following reaction:
    8·1 answer
  • What statement describes elements.A Pure substance that
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!