Excess protons in the blood decrease the amount of HCO − 3 and thus reduce the buffering capacity of blood. A rapid drop in pH could lead to death. Normal values for blood are pH = 7.4 , [ HCO − 3 ] = 24.0 mM , [ CO 2 ] = 1.2 mM . (a) If a patient has a blood pH = 7.03 and [CO2] = 1.2 mM, what is the [HCO3−] in the patient’s blood? The pKa of HCO3−= 6.1.(b) Suggest a possible treatment for metabolic acidosis.
(c) Why might the suggestion for part (b) be of benefit to middle-distance runners?
Answers
Answer:
a) [HCO₃⁻] = 10,2 mM.
b) Sodium bicarbonate.
c) Yes.
Explanation:
a) The equilibrium of this reaction is:
CO₂ + H₂O ⇄ HCO₃⁻ + H⁺
Using Henderson-Hasselbalch equation:
pH = pka + log₁₀
Replacing:
7,03 = 6,1 + log₁₀
Thus, [HCO₃⁻] = 10,2 mM
b) A possible treatment of metabolic acidosis is with sodium bicarbonate. By Le Chateleir's principle the increasing of HCO₃⁻ will shift the equilibrium to the left decreasing thus, H⁺ concentration.
c) The shifting of the equilibrium to the left will increase CO₂ concentration producing in the body the need to increase breathing, increasing, thus, concentration of O₂ improving cardiac function in exercise.
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Answers
The molar mass of Fe2(SO3)3 is 351.8796 moles.
What is molar mass?
Molar mass is defined as the mass equivalent of an element's or a chemical compound's Avogadro number of atoms or molecules, respectively. A mole is defined as the quantity of atoms, molecules, or ions that are present in a substance. It is additionally referred to as the volume of material that contains the same number of discrete units.
Molar mass of Fe2(SO3)3
= 2 × 55.845 + 3 × 32.065 + 9 × 15.9994
= 111.69 + 96.195 + 143.9946
= 351.8796 moles.
The substance iron(III) sulfite, sometimes known as ferrous sulfite, has the chemical formula Fe2(SO3)3. The family of inorganic compounds known as iron(III) Sulphate, sometimes known as ferric Sulphate, has the formula Fe2(SO4)3(H2O)n.
Thus, the molar mass of Fe2(SO3)3 is 351.8796 moles.
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Answer:
The molar mass and molecular weight of Fe2(SO3)3 is 351.8796.
Answers
Answer:
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Answers
Answer:
There is no short answer.
Explanation:
In the given example Bobby is creating a solution for his bacteria count which consists of 1% bacterial sample.
Considering that the solution was mixed homogeneously, he can apply the procedure to the remaining sample and get the results he wants.
Or if the average number of bacteria in a 1 mL sample is known, he can apply that information proportionally to the 100 mL mixture and find the original cell concentration.
I hope this answer helps.
A. The more electronegative atom will form the positive pole of a
polar bond.
B. The more electronegative atom will form a nonpolar end of the
bond.
C. The more electronegative atom will make its end of the bond more
negative.
D. Electronegativity differences between the atoms will cancel out
bond polarity
Answers
The electronegativity affects the polarity of the bond between two atoms, as the more electronegative atom will make its end of the bond more negative. The correct option is C.
What is electronegativity?
Electronegativity is a charge that shows the ability of an element to gain electron pairs with other elements during bonding. Electronegativity is altered by the distance between the electron and the nuclei and the atomic number of the element.
Polarity is the state of the atomic body in which it has placed charges in an opposite way to the other atoms so that they can join together.
Thus, the correct option is C. The more electronegative atom will make its end of the bond more negative.
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Answer:
C. The more electronegative atom willl make its end of the
bond more negative
A P E X
Answers
Answer:
hydrogen have electronic configuration of 1s¹ to acquire a stable state it can either lose electron and form H+cation or gain an electron( to compete its 1s subshell ) to form H- anion. As it has ±1 valency it is placed neither in group 1(alkaline metals ) nor in group 17 (halogens) .