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posledela
3 years ago
11

"Acetylcholinesterase follows Michaelis-Menten kinetics. A 1.3 micromolar solution of acetylcholinesterase catalyzes the formati

on of 6.5 mmoles choline s-1 when saturated with acetylcholine. What is acetylcholinesterase's kcat?"
Chemistry
1 answer:
Brrunno [24]3 years ago
6 0

Answer:5000 s^-1

Explanation: Solution=

Using the formulae----> Kcat=Vmax/Et

where

Vmax is the maximum rate of the reaction when all the enzymes are saturated.

Vmax= 6.5 mmoles/s

Et=1.3 uM

1 mmole= 1000 umole

Changing to micromoles/sec, gives=

Vmax=   6.5 mmoles/s \times 1000= 6500 micromoles/s

Bringng back the equation,  

----->Kcat= Vmax/Et

= 6500/1.3

= 5000 /s

Therefore, our answer  is 5000 s^-1

You might be interested in
How many moles of potassium are contained in 150 g of potassium
BaLLatris [955]

Answer:

150 g of potassium contained 3.8 moles of potassium.

Explanation:

Given data:

Mass of potassium = 150 g

Moles of potassium = ?

Solution:

Number of moles = mass/ molar mass

Molar mass of potassium = 39 g/mol

Now we will put the values in formula:

Number of moles = mass/ molar mass

Number of moles = 150 g/ 39 g/mol

Number of moles = 3.8 mol

150 g of potassium contained 3.8 moles of potassium.

3 0
4 years ago
Which group of organisms disappeared during the mass extinction at the end of the Cretaceous Period?
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Answer:

saber tooth cats

Explanation:

7 0
3 years ago
1. What causes frost to form on the outside of a<br>cold container.​
Kamila [148]

Answer:

condensation

Explanation:

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Which structure of the respiratory system connects the pharynx to the trachea?
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6 0
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Read 2 more answers
Practice Problem #1: __TiO2 + __Cl2 + __C __TiCl4 + __CO2 + __CO
ICE Princess25 [194]

Answer:

Explanation:

1)

Given data:

Moles of Cl₂ react = ?

Moles of carbon = 4.55 mol

Solution:

Chemical equation:

2TiO₂ + 4Cl₂ + 3C  → 2TiCl₄ + CO₂ + 2CO

Now we will compare the moles of Cl₂ with C.

                         C             :            Cl₂

                         3             :              4

                       4.55         :            4/3×4.55 = 6.1 mol

6.1 moles of chlorine will react with 4.55 moles of C.

2)

Given data:

Mass of TiO₂ react = ?

Moles of carbon = 4.55 mol

Solution:

Chemical equation:

2TiO₂ + 4Cl₂ + 3C  → 2TiCl₄ + CO₂ + 2CO

Now we will compare the moles of Cl₂ with C.

                         C             :            TiO₂

                         3             :              2

                       4.55         :            2/3×4.55 = 3 mol

Mass of TiO₂:

Mass = number of moles × molar mass

Mass = 3 mol × 79.87 g/mol

Mass =  239.61 g

3)

Given data:

Molecules of TiCl₄ formed = ?

Moles of TiO₂ react = 115 g

Solution:

Chemical equation:

2TiO₂ + 4Cl₂ + 3C  → 2TiCl₄ + CO₂ + 2CO

Number of moles of TiO₂:

Number of moles = mass/ molar mass

Number of moles = 115 g/ 79.87 g/mol

Number of moles = 1.44 mol

Now we will compare the moles of Cl₂ with C.

                      TiO₂           :            TiCl₄

                         2             :              2

                       1.44           :            1.44

Molecules of TiCl₄:

1 mole = 6.022 × 10²³ molecules

1.44 ×6.022 × 10²³ molecules

8.672× 10²³ molecules

8 0
4 years ago
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