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krek1111 [17]
3 years ago
12

How is hemoglobin's affinity for oxygen affected by the presence or absence of oxygen?

Chemistry
2 answers:
qwelly [4]3 years ago
7 0

Answer:

Explanation:

Haemoglobin is a red protein found in red blood cells of vertebrates responsible for transporting oxygen in the blood. Each haemoglobin has capacity to carry four oxygen molecules. When oxygen is available or present, the molecules of oxygen bind to the iron of the heme prothestic group and it's tend to release oxygen when oxygen level is low in the environment. Haemoglobin carries oxygen in lungs and releases it to tissues.

Pavel [41]3 years ago
3 0

Answer:

Hemoglobin is the pigment present in the red blood cells that helps in the transport of oxygen in the body. A single hemoglobin molecule can binds maximally with four oxygen molecule.

The affinity of the hemoglobin with oxygen depends on the different factors like temperature, presence of the oxygen and the partial pressure. The oxygen affinity for hemoglobin increase with the increase in the oxygen concentration as they shows positive cooperativity. The decline in the oxygen concentration results in decrease in the affinity of hemoglobin with oxygen.

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What is the balanced equation of Na2S+CuSO4=CuS+Na2SO4?​
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3 years ago
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7 0
3 years ago
The density of mercury is 13.5g/mL. What is the volume of this liquid if the sample weighs 12.5 pounds?
Mama L [17]

Answer : The volume of liquid is 420 mL.

Explanation :

Density : The mass per unit volume of a substance is known as density.

Formula used:

\text{Density}=\frac{\text{Mass}}{\text{Volume}}

As we are given:

Density of mercury = 13.5 g/mL

Mass = 12.5 pounds

First we have to convert mass of sample from pound to gram.

Conversion used:

As, 1 pound = 453.6 g

So, 12.5 pounds = 453.6 × 12.5 g = 5670 g

Now we have to calculate the volume of liquid.

\text{Density}=\frac{\text{Mass}}{\text{Volume}}

Now putting all the given values in this formula, we get:

13.5g/mL=\frac{5670g}{\text{Volume}}

Volume = 420 mL

Therefore, the volume of liquid is 420 mL.

7 0
3 years ago
Charles’ Law can be expressed mathematically as V=kT. If the constant k for 6.0 L of gas is 0.020 L/K (liters per kelvin), what
kozerog [31]

Answer: 300 K

Explanation:

Charles' Law: This law states that volume is directly proportional to the temperature of the gas at constant pressure and number of moles.

V\propto T    (At constant pressure and number of moles)

V=kT

Given : V= 6.0 L

k= 0.020 L/K

T=?

6.0=0.020LK^{-1}\times T

T=300 K

Thus temperature of the gas is 300 K.

3 0
3 years ago
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