6. (04.03 MC) Sodium metal reacts with water to produce hydrogen gas.
What best describes this reaction? (4 points)
A single replacement reaction takes place because sodium is less reactive than hydroxide ions.
A double replacement reaction takes place because sodium is less reactive than hydroxide ions.
A double replacement reaction takes place because sodium is more reactive than hydrogen.
A single replacement reaction takes place because sodium is more reactive than hydrogen.

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Ответ:

fespinoza019

21.12.2022

Chemistry

Answer : The substrate concentration is, $360\mu M$

Explanation :

Using Michaelis–Menten equation :

$V=\frac{V_{max}\times [S]}{(K_m+[S])}$

Where,

$V_{max}$ = maximum rate velocity = 1.0nmol/min.mg

[S] = substrate concentration = ?

Km = Michaelis–Menten constant = $120\mu M$

V = reaction rate = 0.75nmol/min.mL

Now put all the given values in the above formula, we get:

$0.75=\frac{1.0\times [S]}{(120+[S])}$

$[S]=360\mu M$

Thus, the substrate concentration is, $360\mu M$

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