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
Len [333]
3 years ago
13

Antibiotic-resistant bacteria have an enzyme, penicillinase, that catalyzes the decomposition of the antibiotic. The molecular m

ass of penicillinase is 31200 g/mol. The turnover number of the enzyme at 28 °C is 2.00 × 103 s–1. If 4.10 μg of penicillinase catalyzes the destruction of 2.83 mg of amoxicillin, an antibiotic with a molecular mass of 364 g/mol, in 29.6 seconds at 28 °C, how many active sites does the enzyme have? Assume that the enzyme is fully saturated under the conditions described above.
Chemistry
1 answer:
arsen [322]3 years ago
3 0

Answer:

The number of  active sites enzyme have is 1.

Explanation:

Mass of penicillinase = 4.10 μg =4.10\times 10^{-6} g

1 g = 1000000 μg

The turnover number of the enzyme at 28 °C = 2.00\times 10^3 s^{-1}

Moles of penicillinase =

\frac{4.10\times 10^{-6} g}{31200 g/mol}=1.31410\times 10^{-10} mol

Mass of antiboitic-amoxicillin =2.83 mg =2.83\times 10^{-3} g

Moles of amoxicillin =

\frac{2.83\times 10^{-3} g}{364 g/mol}=7.7747\times 10^{-6} mol

Moles of reactant which are converted into product per second:

1.31410\times 10^{-10} mol\times 2.00\times 10^3 s^{-1}

=2.6282\times 10^{-7} mol/s

Moles of product converted in 29.6 seconds:

2.6282\times 10^{-7} mol/s\times 29.6 s=7.779472\times 10^{-6} mol

Number of sites:

=\frac{\text{moles of product}}{\text{moles of reactant}}

=\frac{7.779472\times 10^{-6} mol}{7.7747\times 10^{-6} mol}=1.00

You might be interested in
As the temperature of a gas increases, which of the following explains the effect on the average kinetic energy of the gas?
lidiya [134]
As the temperature of a gas increases, the kinetic energy of the gas particles will also increase. As the temperature of the gas increase, the gas particles gains more energy to move faster, they thus collide more with one another and with the wall of the container, thus increasing pressure as well. So, as the temperature of a gas increases, the kinetic energy increases and the pressure increases as well if the gas is inside an inflexible container. 
8 0
3 years ago
Read 2 more answers
How are protons, electrons, and neutrons correctly compared​
Fiesta28 [93]

they all have one thing in common and that its all made up of atoms. When these components are active it creates energy  

4 0
2 years ago
Can someone pls help me?
kolbaska11 [484]

Answer:

17

Explanation:

what is the independent variable

7 0
2 years ago
A chemist adds of a calcium sulfate solution to a reaction flask. Calculate the mass in grams of calcium sulfate the chemist has
Elanso [62]

The given question is incomplete. The complete question is:

A chemist adds 0.85 L of a 0.0050M calcium sulfate to a reaction flask. Calculate the mass in grams of calcium sulfate the chemist has added to the flask. Round your answer to significant digits.

Answer: The mass in grams of calcium sulfate the chemist has added to the flask is 0.58 g

Explanation:

Molarity of a solution is defined as the number of moles of solute dissolved per liter of the solution.

Molarity=\frac{n}{V_s}

where,

n = moles of solute

V_s = volume of solution in L

moles of CaSO_4 = \frac{\text {given mass}}{\text {Molar mass}}=\frac{xg}{136g/mol}

Now put all the given values in the formula of molarity, we get

0.0050=\frac{x}{136\times 0.85}

x=0.58 g

Therefore, the mass in grams of calcium sulfate the chemist has added to the flask is 0.58 g

7 0
2 years ago
Write a balanced equation for the complete combustion of propane, C3H8 . Do not enter phase symbols. Enter the alkane formula as
Anastaziya [24]
Answer:

C3H8 + 5O2 => 3CO2 + 4H2O

Explanation:

Hydrocarbon combustion is the reaction between a hydrocarbon and O2 producing CO2 and water.

C3H8 + O2 => CO2 + H2O

First we balance the C and H.

C3H8 + O2 => 3CO2 + 4H2O

Now we balance O for the answer!

C3H8 + 5O2 => 3CO2 + 4H2O

3 0
3 years ago
Other questions:
  • In 1838, botanist Matthias Schleiden, determined that all plants are composed of cells. In 1839, anatomist Theodor Schwann propo
    13·1 answer
  • The The thermal conductivity of a sheet of rigid, extruded insulation is reported to be k=0.029 W/ m measured temperature differ
    11·1 answer
  • True or False ? Endothermic reactions are characterized by net absorption of thermal energy from its surroundings which leads to
    8·1 answer
  • How do you find a theoretical mass? Is there a difference between theoretical mass and theoretical yield?
    5·1 answer
  • Which of the following best describes a mole as used in chemistry?
    14·1 answer
  • The periodic table and how to use?
    14·1 answer
  • AAAAAAAAAAAAAH HELP ME PLEASEE!!
    10·2 answers
  • Is barium hydroxide Ba(OH)2 or is BaOH?
    14·1 answer
  • 2. What are some common properties of metals, nonmetals, and semimetals?
    15·2 answers
  • Write equations to show whether the solubility of either of the following is affected by pH:(a) CuBr;
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!