<u>Answer:</u> The percent strength of the cell is 22.03 % and the enema is hypertonic in nature.
<u>Explanation:</u>
Isotonic solutions are defined as the solutions in which concentration of solute inside and outside the cell is same.
Hypotonic solutions are defined as the solutions in which concentration of solute inside the cell is less than outside the cell.
Hypertonic solutions are defined as the solutions in which concentration of solute inside the cell is more than outside the cell.
Isotonic saline solution of normal cell in a human body is 0.9 % NaCl.
- To calculate the percentage strength of enema, we use the equation:
where,
= mass of one product (monobasic sodium phosphate) = 19 g
= mass of another product (dibasic sodium phosphate) = 7 g
V = volume of solution = 118 mL
Putting values in above equation, we get:
As, the concentration of enema inside the cell is 22.03 % which is way too high than the normal concentration of cell in human body. Thus, enema is hypertonic in nature.
Hence, the percent strength of the cell is 22.03 % and the enema is hypertonic in nature.
The reaction between KOH and HBr is as follows ;
KOH + HBr ---> H₂O + KBr
Stoichiometry of base to acid is 1:1 molar ratio
Both are strong acid and strong base therefore complete ionization takes place
The number of KOH moles added - 0.50 M / 1000 mL/L x 22 mL = 0.011 mol
the number of HBr moles - 0.25 M /1000 mL/L x 44 mL = 0.011 mol
the number of H⁺ ions and OH⁻ ions are equal therefore the whole amount of acid has been completely neutralised by base.
No remaining acid nor base, therefore solution is neutral.
pH = 7
thats the pH value for a neutral solution
The formula that connects Ka1, Ka2, and Ka3 is the relation;
Ka = Ka1 * Ka2 * Ka3
<h3>What is the Ka?</h3>
The Ka is defined as the acid dissociation constant of a solution. Now we have the triprotic acid called phosphoric acid. this implies that we have Ka1, Ka2, and Ka3.
Thus the formula that connects Ka1, Ka2, and Ka3 is the relation;
Ka = Ka1 * Ka2 * Ka3
Learn more about Ka:brainly.com/question/16035742
#SPJ1
Answer:
The reactión is exothermic
Explanation:
The change in enthalpy follow the next equation:
ΔH = ΔH(products) - ΔH(reactants)
If the products have a lower enthalpy means that ΔH<0; this mean that the reaction gives heat to the environment
