Answer:
The turnover number is the maximum substrate quantitiy converted to product per enzyme and per second. It can be calculate as follows:
with
active enzyme concentration.
In this case we have Vmax an data to calculate ![[E]](https://tex.z-dn.net/?f=%5BE%5D)

Now
it is not like any option.
If we assume that
have the non usual units of
and it is 
So we need divide by the moles of E (in place of [E])
Now 
(pass from
to
dividing by 60)
Answer:
53.5g of NH4Cl
Explanation:
First, we need to obtain the number of mole of NH4Cl. This is illustrated below:
Volume = 0.5L
Molarity = 2M
Mole =?
Molarity = mole /Volume
Mole = Molarity x Volume
Mole = 2 x 0.5
Mole = 1mole
Now, let us convert 1mole of NH4Cl to gram. This is illustrated below:
Molar Mass of NH4Cl = 53.5g/mol
Number of mole = 1
Mass =?
Number of mole = Mass /Molar Mass
Mass = number of mole x molar Mass
Mass = 1 x 53.5
Mass = 53.5g
Therefore, 53.5g of NH4Cl is contained in the solution.
I believe the answer would be C. slows down, hope this helps:)