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kvv77 [185]
3 years ago
5

The half-reactions involved in the lactate dehydrogenase (ldh) reaction and their standard reduction potentials are

Chemistry
1 answer:
vagabundo [1.1K]3 years ago
5 0
Enzyme lactate dehydrogenase catalyses the conversion of lactate to pyruvate. In this reaction lactate loses two electrons (becomes oxidized) and is converted to pyruvate. NAD+ gains two electrons (is reduced) and is converted to NADH. The half reactions involved are;

NAD+ + H+ + 2e- = NADH    -0.320
Pyruvate + 2H+ + 2e- = Lactate   -0.185
Giving an overall reaction of; 
Lactate + NAD+ = Pyruvate + NADH + H+    
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What is the formula of phosphorus pentabromide
Alex787 [66]

Answer:

PBr5 is the formula of phosphorus pentabromide.

hope it helps!

4 0
2 years ago
A 5.00g of X, the product of organic synthesis is obtained in a 1.0 dm3 aqueous solution. Calculate the mass of X that can be ex
Anestetic [448]

Answer:

mass of X extracted from the aqueous solution by 50 cm³ of ethoxy ethane = 3.33 g

Explanation:

The partition coefficient of X between ethoxy ethane (ether) and water, K is given by the formula

K = concentration of X in ether/concentration of X in water

Partition coefficient, K(X) between ethoxy ethane and water = 40

Concentration of X in ether = mass(g)/volume(dm³)

Mass of X in ether = m g

Volume of ether = 50/1000 dm³ = 0.05 dm³

Concentration of X in ether = (m/0.05) g/dm³

Concentration of X in water = mass(g)/volume(dm³)

Mass of X in water left after extraction with ether = (5 - m) g

Volume of water = 1 dm³

Concentration of X in water = (5 - m/1) g/dm³

Using K = concentration of X in ether/concentration of X in water;

40 = (m/0.05)/(5 - m)

(m/0.05) = 40 × (5 - m)

(m/0.05) = 200 - 40m

m = 0.05 × (200 - 40m)

m = 10 - 2m

3m = 10

m = 10/3

m = 3.33 g of X

Therefore, mass of X extracted from the aqueous solution by 50 cm³ of ethoxy ethane = 3.33 g

8 0
3 years ago
Pollen is produced in the anthers, which are the _______ organs of flowers.
scoray [572]
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Reason:
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2 years ago
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AnnyKZ [126]

Answer:

they are apart of the life cycle

Explanation:

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