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Slav-nsk [51]
4 years ago
14

Sub atomic particle mass

Chemistry
1 answer:
melamori03 [73]4 years ago
4 0
1. neutron
2. proton which is positive
3. electron which is negative
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Carbonic anhydrase of erythrocytes (Mr 30,000) has one of the highest turnover numbers known. It catalyzes the reversible hydrat
Afina-wow [57]

Explanation:

According to the given data, the turnover number can be calculated as follows.

      Turnover number = K_{cat} = \frac{V_{max}}{\text{Concentration of enzyme}}

     V_{max} = \frac{\text{Moles of CO_{2} hydrolyzed}{second}

Therefore, moles of CO_{2} hydrolyzed is as follows.

Moles of CO_{2} hydrolyzed = \frac{Mass of CO_{2}}{Molar mass of CO_{2}}

                 = \frac{0.30}{44}

                 = 0.00682 moles

Now, moles of CO_{2} hydolyzed per second is calculated as follows.

Moles of CO_{2} hydolyzed per second = \frac{0.00682}{60}

             = 1.137 \times 10^{-4} moles/second = V_{max}

And,

Moles of enzyme = \frac{Mass}{\text{Molar mass}}

                       = \frac{10.0 \mu g}{30000}

                       = 3.33 \times 10^{-10} moles

Therefore, the value of K_{cat} is as follows.

    K_{cat} = \frac{1.137 \times 10^{-4} moles}{3.333 \times 10^{-10} moles}

               = 0.3411 \times 10^{6} per second

               = 0.3411 \times 60 \times 10^{6} per minute

               = 20.466 \times 10^{6} per minute

Thus, we can conclude that the turnover number (K_{cat}) of carbonic anhydrase (in units of min^{-1}) is 20.466 \times 10^{6} per minute.

6 0
4 years ago
A chemist investigates the
nevsk [136]

Answer:

1, 2 & 3

Explanation:

. A chemist investigates the boiling point, melting point, and flammability

of a compound called acetone, a component of nail polish remover.

Which of these properties are physical properties and which are

chemical properties?

Physical ( boiling point and melting point ).

Chemical ( flammability )

6 0
3 years ago
Look.....................................................................
WARRIOR [948]

Answer:

B

Explanation:

I had this question and got it right

8 0
3 years ago
Metals, Non-Metals, Metalloids
san4es73 [151]
Elements 2 and 4 is the answer
5 0
3 years ago
2 Which of these rates of travel is slowest
Rama09 [41]

Answer:

60 kilometres per hour is the slowest rate of travel

Explanation:

we convert

20 kilometer per minute into kilometer per second

it comes out 1/3 kilometer per sec

7 0
2 years ago
Read 2 more answers
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