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Concentrated alkalis are substances with a high pH level that can neutralize acids and are commonly used in cleaning agents and industrial processes. These substances can be corrosive and can cause burns if they come into contact with skin. Examples include sodium hydroxide (lye) and potassium hydroxide.
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What is more dangerous concentrated alkali or dilute alkali?
Concentrated alkali is more dangerous than dilute alkali because it has a higher pH and can cause more severe burns and damage upon contact with skin or tissues. Dilute alkali, on the other hand, is less corrosive and poses a lower risk of harm.
Does diluting an alkali give a more concentrated solution?
No, diluting an alkali solution will actually result in a less concentrated solution. Dilution involves adding more solvent, which decreases the concentration of the solute (in this case, the alkali) in the solution.
Which is more concentrated -20g of alkali in 250 cm3 of solution or 10 g of the same alkai in 500 cm3 of solution?
To determine which solution is more concentrated, we need to calculate the concentration of each solution in grams per cubic centimeter (g/cm3). For the first solution with 20g of alkali in 250 cm3 of solution, the concentration would be 20g / 250 cm3 = 0.08 g/cm3. For the second solution with 10g of alkali in 500 cm3 of solution, the concentration would be 10g / 500 cm3 = 0.02 g/cm3. Therefore, the first solution with 20g of alkali in 250 cm3 of solution is more concentrated at 0.08 g/cm3 compared to the second solution with 10g of alkali in 500 cm3 of solution at 0.02 g/cm3.
Can we add alkali to make a concentrated acid less hazardous?
No, adding alkali to a concentrated acid can be extremely hazardous as it can result in a violent chemical reaction that generates heat and toxic gases. It is safer to neutralize the acid slowly using a base such as sodium bicarbonate or sodium hydroxide while taking proper safety precautions.
Does a strong alkali have a pH of 14?
Yes, a concentrated solution of NaOH and KOH may have pH=14
What is more dangerous concentrated alkali or dilute alkali?
Concentrated alkali is more dangerous than dilute alkali because it has a higher pH and can cause more severe burns and damage upon contact with skin or tissues. Dilute alkali, on the other hand, is less corrosive and poses a lower risk of harm.
Does diluting an alkali give a more concentrated solution?
No, diluting an alkali solution will actually result in a less concentrated solution. Dilution involves adding more solvent, which decreases the concentration of the solute (in this case, the alkali) in the solution.
Which is more concentrated -20g of alkali in 250 cm3 of solution or 10 g of the same alkai in 500 cm3 of solution?
To determine which solution is more concentrated, we need to calculate the concentration of each solution in grams per cubic centimeter (g/cm3). For the first solution with 20g of alkali in 250 cm3 of solution, the concentration would be 20g / 250 cm3 = 0.08 g/cm3. For the second solution with 10g of alkali in 500 cm3 of solution, the concentration would be 10g / 500 cm3 = 0.02 g/cm3. Therefore, the first solution with 20g of alkali in 250 cm3 of solution is more concentrated at 0.08 g/cm3 compared to the second solution with 10g of alkali in 500 cm3 of solution at 0.02 g/cm3.
Can we add alkali to make a concentrated acid less hazardous?
No, adding alkali to a concentrated acid can be extremely hazardous as it can result in a violent chemical reaction that generates heat and toxic gases. It is safer to neutralize the acid slowly using a base such as sodium bicarbonate or sodium hydroxide while taking proper safety precautions.
What alkali has a pH value between 11 and 14?
A solution with a pH value between 11 and 14 is highly alkaline. Common examples of alkalis that can have such pH values are sodium hydroxide (NaOH) and potassium hydroxide (KOH).
Does a strong alkali have a pH of 14?
Yes, a concentrated solution of NaOH and KOH may have pH=14
What is a mild alkali?
A mild alkali refers to a substance that has a slightly basic pH level and is not highly corrosive or reactive. It is generally less concentrated and less caustic compared to strong alkalis like sodium hydroxide. Examples of mild alkalis include soap or baking soda.
What is effect of base or alkali on turmeric paper?
if it is dilluted then it will have no change in colour and if concentrated then it will just go off tearing the paper and if any base it will turn pink or red by harshal
Is acid more dangerous than alkali?
It depends on the concentration and specific type of acid or alkali. In general, concentrated acids tend to be more corrosive and can cause severe chemical burns, while concentrated alkalis can also be harmful if they come into contact with skin or eyes. Both acids and alkalis should be handled with care and caution.
Does an alkali easily neutralize a concentrated acid or a dilute acid?
Alkalies can neutralize both concentrated and dilute acids, but dilute acids are 'more easily' neutralized (i.e. require a smaller amount of alkali for the same amount of acid). It is a simple chemical reaction, the amount of alkali required to neutralize an acid can be calculated if you know how they react and the strengths of the acid and alkali. E.g. if you use Potassium Hydroxide (KOH) to neutralize Hydrochloric acid (HCL) the reaction is: KOH + HCL --) KCL + H2O So one molecule of KOH neutralizes one molecule of HCL If you have 1 molar KOH, then : 10 ml of dilute HCL (0.1 molar strength) will be neutralized by 1 ml of KOH 10 ml of a strong HCL (10 molar strength) will be neutralized by 100 ml of KOH Hope that helps.
Which alkali is strongest in alkali?
Lithium hydroxide is the strongest alkali in the alkali metal group.
Salts of alkaline earth metals are less soluble than salts of alkali metals because?
A higher cation charge concentrated on the smaller cations makes it hard to pull apart ionic lattices
