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3 years ago

The carbon dioxide molecules that bind to the hemoglobin molecule are attached to the __________ units.

Chemistry

1 answer:

weqwewe [10]3 years ago

4 0

Answer:

four subunits

Explanation:

Hemoglobin is made up of four subunits and can bind up to four oxygen molecules. Carbon dioxide levels, blood pH, body temperature, environmental factors, and diseases can all affect oxygen's carrying capacity and delivery

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1. 17.0 grams of xenon hexafluoride is in a solid container. How many milliliters of that gas

BlackZzzverrR [31]

Answer: The volume of gas is 3020 ml

Explanation:

According to ideal gas equation:

$PV=nRT$

P = pressure of gas = 821.4 torr = 1.08 atm (760 torr = 1atm)

V = Volume of gas in L = ?

n = number of moles = $\frac{\text {given mass}}{\text {Molar mass}}=\frac{17.0g}{245.28g/mol}=0.069mol$

R = gas constant = $0.0821Latm/Kmol$

T =temperature = $302.7^0C=(302.7+273)K=575.7K$

$V=\frac{nRT}{P}$

$V=\frac{0.069mol\times 0.0821Latm/K mol\times 575.7K}{1.08atm}=3.02L=3020ml$

Thus volume of gas is 3020 ml

4 0

3 years ago

A gas has a pressure of 2.31 atm and occupies

jenyasd209 [6]

Answer:

The pressure of the gas after getting compressed is 1.92 L.

Explanation:

To calculate the new pressure, we use the equation given by Boyle's law. This law states that pressure is directly proportional to the volume of the gas at constant temperature.

The equation given by this law is:

$P_1V_1=P_2V_2$ (At constant temperature)

where,

$P_1\text{ and }V_1$ are initial pressure and volume.

$P_2\text{ and }V_2$ are final pressure and volume.

We are given:

$P_1=2.31 atm\\V_1=8 L\\P_2=?mmHg\\V_2=1.92 L$

Putting values in above equation, we get:

$2.31 atm\times 8 L=P_2\times 1.92 L$

$P_2=\frac{2.31 atm\times 8 L}{1.92 L}$

$P_2=9.625 atm$

The pressure of the gas after getting compressed is 1.92 L.

4 0

4 years ago

How many atoms are in 6.78x1024 molecules of oxygen gas? PLEASE HELP WILL marK braNLIes

sineoko [7]

6942.72
I hope this works!

4 0

3 years ago

Complete the following paragraph to describe how the electrostatic forces in salt compounds can be overcome by interactions betw

motikmotik

Answer:

The words are: (2) ionic bonds; (3) ion-dipole forces; (4) soluble; (8) higher

Explanation:

-Salts are composed of ions that form a tightly packed and ordered network, which is called a crystal lattice, and it is held together by ionic bonds.

Explanation: salts are ionic compounds, which are composed by oppositely charged ions (cations and anions) which are bonded each other by ionic bonds, in an ordered arrangement, often a crystalline solid.

-When a salt is added to a polar solvent like water, the ions interact with the solvent molecules via ion-dipole forces, which overcome the forces originally holding the ions together.

Explanation: the molecules of a polar solvent are dipoles because they have dipolar momentum (a difference in charge due to a electronegativiy difference). When a salt is dissolved in a polar solvent, it dissociates in ions. So, the resulting interactions between these species are ion-dipole forces.

-The ions are then isolated and stabilized in solution via these interactions, and when this occurs for most of the salt compound, it is considered soluble in that solvent.

Explanation: the ions in solution are surrounded by solvent molecules which stabilizes them. A salt which is enterely dissolved in a solvent is soluble in that solvent.

-Due to the nature of the interaction between ions and solvent molecules, a concentration of ions can be dissolved higher in water than in alcohol.

Explanation: water molecules have unique properties that make water an universal solvent. Due to these properties and its polarity, water can dissolve larger quantities of salt than other polar solvents such as alcohol.

3 0

3 years ago

Which planets are gas giants

Amiraneli [1.4K]

Answer:

INNER PLANTS

Mercury - Rocky planets

Venus - Rocky planets

Earth - Rocky planets

Mars - Rocky plants

------------------------------------

OUTER PLANETS

Jupiter - gas giants

Saturn - gas giants

Uranus - gas giants

Neptune - gas giants

4 0

4 years ago