Answer:
- 1.22KJ
Explanation:
First we put down the equation of the reaction;
NH4Cl(s)<-------->NH3(g) + HCl(g)
The equilibrium constant K is obtained from;
K= P(NH3) × P(HCl)
Where;
P(NH3)= pressure of ammonia
P(HCl)= pressure of hydrogen chloride gas
Pure solids and liquids are not included in the equilibrium constant expression. This is because they do not affect the reactant amount at equilibrium in the reaction, so they are disregarded and kept at 1. Remember that the activity, a, of any solid or liquid in a reaction is equal to 1. Hence [NH4Cl]= 1
K= 1.03 × 1.18 = 1.22
∆G° = -RTlnK
R= 8.314 JK-1mol-1
T= 465°C +273= 738K
K= 1.22
lnK= ln(1.22)= 0.19885
∆G= -(8.314 ×738 ×0.19885)
∆G= -1220.1 J
∆G= -1.22×10^3 J
∆G= - 1.22KJ
A neutral atom in its ground state contains 28 electrons. this element is considered a <span>transition </span>element, and has 8 electrons in orbitals with l = 2.
Electron configuration: ₂₈X 1s² 2s² 2p⁶ 3s² 3p⁶ 3d⁸ 4s².
l is azimuthal quantum number, l = 2 describes d orbital. There is eight electrons in 3d orbital.
Answer:
1.89 × 10^-11 M
Explanation:
Recall that;
[H^+] [OH^-] = 1 × 10^-14
[H^+] = concentration of hydronium ions
[OH^-] = concentration of hydroxide ion
Where [OH^-] = 5.3 × 10−4 M
[H^+]= 1 × 10^-14/5.3 × 10−4
[H^+]= 1.89 × 10^-11 M
Answer:Ionic compounds form when positive and negative ions share electrons and form an ionic bond. ... The positive ion, called a cation, is listed first in an ionic compound formula, followed by the negative ion, called an anion. A balanced formula has a neutral electrical charge or net charge of zero.
Explanation:Simple ions:
Perchlorate ClO4- IO3-
Chlorate ClO3- BrO3-
Chlorite ClO2-
Hypochlorite OCl- OBr-