Question
Explain the applications of Fajan's law.
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Answer
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At 1127 K and 1 atm pressure, a gaseous mixture of CO and $CO _2$ in equilibrium with solid carbon has $90.55 \% CO$ by mass
$C ( s )+ CO _2(g) \rightleftharpoons 2 CO ( g )$
Calculate $K_c$ for this reaction at the above temperature.
→$C ( s )+ CO _2(g) \rightleftharpoons 2 CO ( g )$
Calculate $K_c$ for this reaction at the above temperature.
Chlorine is prepared in the laboratory by treating manganese dioxide (MnO2) with aqueous hydrochloric acid according to the reaction
4HCl(aq) + MnO2(s) → 2H2O(l) + MnCl2(aq) + Cl2(g)
How many grams of HCl react with 5.0g of manganese dioxide?
4HCl(aq) + MnO2(s) → 2H2O(l) + MnCl2(aq) + Cl2(g)
How many grams of HCl react with 5.0g of manganese dioxide?
Match the following species with the corresponding conjugate acid.
→| Species | Conjugate acid | ||
| i. | $\text{NH}_3$ | a. | $\text{CO}_3^{2-}$ |
| ii. | $\text{HCO}_3^-$ | b. | $\text{NH}_4^+$ |
| iii. | $\text{H}_2\text{O}$ | c. | $\text{H}_3\text{O}^+$ |
| iv. | $\text{HSO}_4^-$ | d. | $\text{H}_2\text{SO}_4$ |
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| e. | $\text{H}_2\text{CO}_3$ |
How the IUPAC nomenclature of derivatives of Benzene is done? Explain with example.
Write short note on ionisation constant and ionic product of water.
$\text{K}_{\text{c}}\text{ for }\text{PCl}_5(\text{g})\rightleftharpoons\text{PCl}_3(\text{g})+\text{Cl}_2(\text{g})\text{ is }0.04\text{ at }25^\circ\text{C}.$
How much moles of PCl5 must be added to 3L flask to obtain a chlorine concentration of 0.15M.
→How much moles of PCl5 must be added to 3L flask to obtain a chlorine concentration of 0.15M.
The first ionization enthalpy values (in kJ mol–1) of group 13 elements are:
How would you explain this deviation from the general trend?
| B | Al | Ga | In | Tl |
| 801 | 577 | 579 | 558 | 589 |
1. Two liquids (A) and (B) can be separated by the method of fractional distillation. The boiling point of a liquid (A) is less than the boiling point of a liquid (B). Which of the liquids do you expect to come out first in the distillate? Explain.
2. Structures and IUPAC names of some hydrocarbons are given below. Explain why the names given in the parentheses are incorrect.
2. Structures and IUPAC names of some hydrocarbons are given below. Explain why the names given in the parentheses are incorrect.
The pH of milk, black coffee, tomato juice, lemon juice and egg white are 6.8, 5.0, 4.2, 2.2 and 7.8 respectively. Calculate corresponding hydrogen ion concentration in each.
What is Lewis point structure? Explain the rules of writing this with examples.