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krek1111 [17]
3 years ago
12

How will the properties of a biological membrane change if the fatty acid tails of the phospholipids are converted from saturate

d to unsaturated chains?
Chemistry
1 answer:
kumpel [21]3 years ago
7 0
Some of the properties that will change as the biological membrane composed primarily of phospholipids change from the saturated to unsaturated fatty acid tails of the phospholipid would include, permeability of the membrane, this will cause the membrane to be more fluid and not remain as controlling of the materials. The membrane will ultimately become poor in regulating ions and other materials from coming into the cell, as the phospholipids are not tightly packed due to them being unsaturated and having carbon double bonds within them. This can also affect the overall shape of the plasma membrane as well, causing it to be not as structured, and more fluid,
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) Hydrogen gas is highly combustible, and leakage can lead to a catastrophic explosion. The concentration of hydrogen gas in the
erastovalidia [21]

Answer:

Hydrogen gas is highly combustible, and leakage can lead to a catastrophic explosion. The concentration of hydrogen gas in the furnace is held constant at 6.022 x 1023 atoms/m3 and is effectively 0 outside the furnace. Calculate the mass flow rate (mg/hr) of hydrogen from the furnace if the diffusivity of hydrogen through the glass is 2 x 10-5 m2 /s. You may assume steady state behavior and constant diffusivity. You may assume that diffusion only occurs through the glass. The molar mass of hydrogen can be taken as 2 g/mol

Explanation:

4 0
3 years ago
Consider a solution containing 0.100 M fluoride ions and 0.126 M hydrogen fluoride. The concentration of fluoride ions after the
Nataliya [291]

Answer: The concentration of fluoride ions after the addition of 9.00 mL of 0.0100 M HCl to 25.0 mL of this solution is 0.0709 M.

Explanation:

Given: Concentration of hydrogen fluoride = 0.126 M

Concentration of fluoride ions = 0.1 M

Volume of HCl = 9.0 mL

Concentration of HCl = 0.01 M

Volume of HCl = 25.0 mL

Moles of F^{-} ions are calculated as follows.

Moles of F^{-} = molarity \times volume\\= 0.1 M \times 0.025 L\\= 0.0025 mol

Moles of HF are as follows.

Moles of HF = Molarity \times Volume\\= 0.126 M \times 0.025 L\\= 0.00315 mol

Moles of HCl are as follows.

Moles of HCl = Molarity \times volume\\= 0.01 M \times 0.009 L\\= 0.00009 mol

Now, reaction equation with initial and final moles will be as follows.

                        H^{+}  + F^{-}  \rightarrow  HF

Initial:      0.00009  0.0025    0.00315

Equilibrium:      (0.0025 - 0.00009)    (0.00315 + 0.00009)

                                = 0.00241                    = 0.00324

Total volume = (9.00 mL + 25.0 mL) = 34.0 mL = 0.034 L

Hence, concentration of fluoride ions is calculated as follows.

Concentration = \frac{moles}{volume}\\= \frac{0.00241 mol}{0.034 L}\\= 0.0709 M

Thus, we can conclude that concentration of fluoride ions after the addition of 9.00 mL of 0.0100 M HCl to 25.0 mL of this solution is 0.0709 M.

7 0
3 years ago
QUICKKK
Rus_ich [418]

Answer:

need more like a image or somthing but it might be c

4 0
2 years ago
Why is water clarity an important measure of water quality?
Neko [114]
Water clarity is important in water habitats. The amount of sunlight that reaches underwater plants depends on water clarity. The plants will die if they cannot get enough sunlight, and we need the water to be clean and clear so the sunlight reaches the plants. Hope that helps :)
8 0
3 years ago
The compound methylamine, CH3NH2, is a weak base when dissolved in water. Write the Kb expression for the weak base equilibrium
Veronika [31]

Answer:

Kb = [CH₃NH₃⁺] × [OH⁻] / [CH₃NH₂]

Explanation:

According to Brönsted-Lowry acid-base theory:

  • An acid is a substance that donates H⁺.
  • A base is a substance that accepts H⁺.

When methylamine reacts with water, it behaves as a Brönsted-Lowry base, according to the following reaction.

CH₃NH₂(aq) + H₂O(l) ⇄ CH₃NH₃⁺(aq) + OH⁻(aq)

The basic equilibrium constant (Kb) is:

Kb = [CH₃NH₃⁺] × [OH⁻] / [CH₃NH₂]

3 0
3 years ago
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