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Strength of a Solution
Strength of a Solution - Strength of a solution is defined as the amount of the solute in gms, present in one litre of the solution. It is expressed as gL - 1 . Mathematicall..
Strength of a Solution
Strength of a solution is defined as the amount of the solute in gms, present in one litre of the solution. It is expressed as gL - 1..
Basic strength
All these hydrides have one lone pair of electrons on their central atom. Therefore, they act as Lewis bases. They can donate an electron pair to electron deficient species (Lewis acids). Down the group, the basic character of the hydrides decreases. For e.g., NH 3 is distinctly basic; PH 3 is w..
(iv) Acidic strength
In gaseous state, hydrogen halides are covalent. But in aqueous solutions, they ionize and behave as acids. The acidic strength of these acids decreases in the order: HI > HBr > HCI > HF Thus, HF is the weakest acid and HI is the strongest acid among these halogen hydrides. Exp..
Solution
The non-reactivity or inertness of nitrogen is due to: Its small atomic size. Its high bond order. The N-N bond in the N 2 molecule has a formal triple bond character The N N bond distance is 109.8 pm and is very stable. Its bond dissociation energy is 946kJ mol - 1 . The dissociat..
The non-reactivity or inertness of nitrogen is due to: Its small atomic size. Its high bond order. The N-N bond in the N 2 molecule has a formal triple bond character The N N bond distance is 109.8 pm and is very stable. Its bond dissociation energy is 946kJ mol - 1 . The dissociat..Size of Solute Particles
Smaller the size of the particles greater is the solubility. For example, it is easier to dissolve powdered sugar than granules of sug..
A chemical laboratory has 500 ml of 50% acid solution. How much water ..
A chemical laboratory has 500 ml of 50% acid solution. How much water should be added so that the strength of the solution is 30%? => 33.33 ml or 250 ml or 183.33 ml or 333.33 ml..
Solution
Na + has a smaller size than Na. Na + is formed by the removal of one electron from Na. However both of these posses the same nuclear charge. Therefore electrons in Na + are more tightly held than in Na. The removal of one electron from Na also leads to complete removal of the third s..
Solution
Li + ion has small size and has maximum tendency to distort the electron cloud of the anion by withdrawing the electrons from the negative ion towards itself. This tendency to distort the electron cloud of the negative ion by the positive ion is known as polarization. It causes the char..
Li + ion has small size and has maximum tendency to distort the electron cloud of the anion by withdrawing the electrons from the negative ion towards itself. This tendency to distort the electron cloud of the negative ion by the positive ion is known as polarization. It causes the char..Solution
[H 3 O + ] = 6.2 x 10 - 9 M pH = -log [H 3 O + ] pH = -log [6.2 x 10 - 9 ] = -(log 6.2 - 9 log 10) = -log 6.2 + 9 x 1 (log 6.2 = 0.79) = 9 - 0.79 = 8.21 8. Acid A, B, C and D have the following pKa values: A = 1.5, B = 3.5, C = 2.0, D = 5.0. Arrange these acids in..
Result
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