Two important uses of washing soda and baking soda:- Washing soda (Na2CO3.10H2O) Baking soda (NaHCO3) (i)It is used as an electrolyte (i)It can be used to test the garden soil for acidity. If bubbles are developed, then the soil is too acidic. (ii) It can be used as a water softener for laundry (ii) If …
Give two important uses of washing soda and baking soda. Read More »
The reaction of the acid with base gives a product of corresponding salt and water, which is considered a neutralisation reaction. e.g. KOH + HCl → KCl + H2O Ca(OH)2 + H2CO3 → CaCO3 + 2H2O
Plaster of Paris ( CaSO4.1/2H2O) should be stored in a moisture-proof container because moisture can affect the Plaster of Paris by slowing down the setting of the plaster because of hydration. As a result, plaster will be ineffective.
(A) He changed the fresh milk’s pH from 6 to slightly alkaline to stop the production of lactic acid, which would otherwise cause the milk to turn sour. (b) Because the pH is initially neutralised by the lactic acid created here before it is reduced to set the milk into curd, this milk takes a …
Fresh milk (PH = 6) is turned into curd due to the production of lactic acid. Lactic acid reduces the pH of the milk. Milk will sour due to the formation of lactic acid.
Acetic acid (CH3COOH) is weaker than HCl, HCl is a stronger acid. The production of hydrogen gas as a byproduct of the acid’s reaction with the magnesium ribbon causes fizzing. Since HCl is such a powerful acid, test tube A releases a lot of hydrogen gas. As a result, test tube A experiences increased fizzing.
In increasing order of hydrogen ion concentration, pH 11(C) < pH 9(E) < pH 7 (D) < pH 4 (A) < pH 1 (B) PH = 11 – Strongly alkaline pH = 9 – Weakly alkaline PH = 7 – Neutral pH = 4 – Weakly acidic pH = 1 – Strongly acidic
Acids do not produce H+ ions in absence of water , thats why acids not show acidic behaviour in the absence of water. Acids behave as acids , because hydrogen (H+) ions are present. Water is definitely required for acids to show their acidic behaviour because hydrogen ions (H+)can only be formed there.
There are no ionic compounds in distilled water.In comparison, rainwater contains a lot more chemicals.Carbon dioxide from the air is one of the acidic gases that rainwater has dissolved and turned into carbonic acid. This indicates that it contains carbonate and hydrogen ions. Therefore, rainwater can conduct electricity when there are acids present.
As shown in the figure, put two nails into the wooden or rubber cork and set it on a beaker. Connect the iron nail to a wire that is connected to the switch, a bulb, and a 6-volt battery. Pour some alcohol or glucose on to plate, then dip your nails in it to soak …
