Answer:
Keq = 19
ΔG° = -7.3kJ/mol
Explanation:
Based on the chemical reaction:
Glucose 1-phosphate ⇄ Glucose 6-phosphate
The equilibrium constant, Keq is defined as:
Keq = [Glucose 6-phosphate] / [Glucose 1-phosphate]
<em>Where [] are equilibrium concentrations of each substance</em>
<em />
Replacing:
Keq = [0.19M] / [0.01M]
Keq = 19
Now, standard free energy change, ΔG° is defined as:
ΔG° = -RT ln K
<em>Where R is gas constant 8.314J/molK</em>
<em>T is absolute temperature (25°C + 273.15K = 298.15K)</em>
<em>and K is equilibrium constant = 19</em>
<em />
Replacing:
ΔG° = -8.314J/molK*298.15K ln 19
ΔG° = -7299J/mol
ΔG° = -7.3kJ/mol
Hello!
The precipitate of the reaction that occurs <span>when a silver nitrate solution is mixed with a sodium chloride solution is silver chloride (AgCl).
The chemical equation for this precipitation reaction is the following:
AgNO</span>₃(aq) + NaCl(aq) → AgCl↓(s) + NaNO₃(aq)
Silver Chloride is a chemical compound that is poorly soluble in water because the chemical bond between Ag⁺ and Cl⁻ is very strong as the two ions are nearly the same size and have similar electronic densities. If the chemical bond is strong, it is more difficult for water molecules to break this bond to surround the individual ions, and thus solubility will decrease.
Have a nice day!
Answer:
120.0 mL.
Explanation:
- As it is known that the no. of millimoles of a solution before dilution is equal to the no. of millimoles after dilution.
We suppose that the initial W% of methanol is 100.0 %
<em>∴ (W%V) before dilution = (W%V) after dilution.</em>
W% before dilution = 100.0 %, V before dilution = 18.0 mL.
W% after dilution = 15.0 %, V after dilution = ??? mL.
<em>∴ V after dilution = (W%V) before dilution/W% after dilution = </em>(100.0 %)(18.0 mL)/(15.0%)<em> = 120.0 mL.</em>
Answer:
The number of protons in the nucleus of the atom is equal to the atomic number (Z). The number of electrons in a neutral atom is equal to the number of protons. The mass number of the atom (M) is equal to the sum of the number of protons and neutrons in the nucleus.
