Since soap is basic in nature, it will turn red litmus blue. However, the colour of blue litmus will remain blue, because soap is sodium salt of fatty acid. It is obtained by treatment of oil with caustic soda. Sodium stearate is thus a salt of weak acid and strong base, so it is alkaline in nature.
Since soap is basic in nature, it will turn red litmus blue. However, the colour of blue litmus will remain blue, because soap is sodium salt of fatty acid. It is obtained by treatment of oil with caustic soda. Sodium stearate is thus a salt of weak acid and strong base, so it is alkaline in nature.
Soap does not work properly in hard water. A soap is a sodium or potassium salt of long chain carboxylic acid. Hard water contains salts of calcium and magnesium. When soap is added to hard water, sodium and potassium ions present in soap displace calcium or magnesium ions from the water molecules fRead more
Soap does not work properly in hard water. A soap is a sodium or potassium salt of long chain carboxylic acid. Hard water contains salts of calcium and magnesium. When soap is added to hard water, sodium and potassium ions present in soap displace calcium or magnesium ions from the water molecules forming an insoluble substance called scum. A lot of soap is wasted in the process.
Carbon compounds give a lot of heat and light when burnt in air. Saturated hydrocarbons burn with a clean flame and no smoke is produced. The carbon compounds, used as a fuel, have high calorific values. Therefore, carbon and its compounds are used as fuels because they for most applications.
Carbon compounds give a lot of heat and light when burnt in air. Saturated hydrocarbons burn with a clean flame and no smoke is produced. The carbon compounds, used as a fuel, have high calorific values. Therefore, carbon and its compounds are used as fuels because they for most applications.
A soap is a sodium or potassium salt of long chain carboxylic acids. It has one polar end and one non-polar end. The polar end is hydrophilic in nature which is attracted towards water. The non-polar end is hydrophobic but lipophilic, i.e., it is attracted towards hydrocarbons. When soap is added toRead more
A soap is a sodium or potassium salt of long chain carboxylic acids. It has one polar end and one non-polar end. The polar end is hydrophilic in nature which is attracted towards water. The non-polar end is hydrophobic but lipophilic, i.e., it is attracted towards hydrocarbons. When soap is added to water, soap molecules arrange themselves in a cluster, the non-polar portion out of water such that the non-polar ends are in the interior of the cluster attached with dirt and the polar ends are on the surface of the cluster. Since the dirt present on clothes is oily in nature and insoluble in water, the hydrophobic ends of the clusters attach themselves to the dirt. This cluster of soap molecule formation in which the dirt is entrapped is called micelles. Micelle formation does not occur in alcohol because the alkyl chain of soap becomes soluble in alcohol.
Ethanol is a liquid at room temperature with a pleasant odour while ethanoic acid has vinegar-like smell. The melting point of ethanoic acid is 17°C. This is below room temperature and hence, it freezes during winters. For ex: CH3CH2OH + Na2CO3 → No Reaction Ethanoic acid reacts with metal carbonateRead more
Ethanol is a liquid at room temperature with a pleasant odour while ethanoic acid has vinegar-like smell. The melting point of ethanoic acid is 17°C. This is below room temperature and hence, it freezes during winters.
For ex: CH3CH2OH + Na2CO3 → No Reaction
Ethanoic acid reacts with metal carbonates and metal hydrogen carbonates to form salt, water, and carbon dioxide gas while ethanol does not react with them.
What change will you observe if you test soap with litmus paper (red and blue)?
Since soap is basic in nature, it will turn red litmus blue. However, the colour of blue litmus will remain blue, because soap is sodium salt of fatty acid. It is obtained by treatment of oil with caustic soda. Sodium stearate is thus a salt of weak acid and strong base, so it is alkaline in nature.
Since soap is basic in nature, it will turn red litmus blue. However, the colour of blue litmus will remain blue, because soap is sodium salt of fatty acid. It is obtained by treatment of oil with caustic soda. Sodium stearate is thus a salt of weak acid and strong base, so it is alkaline in nature.
See lessExplain the formation of scum when hard water is treated with soap.
Soap does not work properly in hard water. A soap is a sodium or potassium salt of long chain carboxylic acid. Hard water contains salts of calcium and magnesium. When soap is added to hard water, sodium and potassium ions present in soap displace calcium or magnesium ions from the water molecules fRead more
Soap does not work properly in hard water. A soap is a sodium or potassium salt of long chain carboxylic acid. Hard water contains salts of calcium and magnesium. When soap is added to hard water, sodium and potassium ions present in soap displace calcium or magnesium ions from the water molecules forming an insoluble substance called scum. A lot of soap is wasted in the process.
For example:
Sodium Stearate + Calcium chloride → Sodium chloride + Calcium Stearate (scum)
Formation of scum hinders the formation of foam, so soap is thus unable to clean in hard water.
See lessWhy are carbon and its compounds used as fuels for most applications?
Carbon compounds give a lot of heat and light when burnt in air. Saturated hydrocarbons burn with a clean flame and no smoke is produced. The carbon compounds, used as a fuel, have high calorific values. Therefore, carbon and its compounds are used as fuels because they for most applications.
Carbon compounds give a lot of heat and light when burnt in air. Saturated hydrocarbons burn with a clean flame and no smoke is produced. The carbon compounds, used as a fuel, have high calorific values. Therefore, carbon and its compounds are used as fuels because they for most applications.
See lessWhy does micelle formation take place when soap is added to water? Will a micelle be formed in other solvents such as ethanol also?
A soap is a sodium or potassium salt of long chain carboxylic acids. It has one polar end and one non-polar end. The polar end is hydrophilic in nature which is attracted towards water. The non-polar end is hydrophobic but lipophilic, i.e., it is attracted towards hydrocarbons. When soap is added toRead more
A soap is a sodium or potassium salt of long chain carboxylic acids. It has one polar end and one non-polar end. The polar end is hydrophilic in nature which is attracted towards water. The non-polar end is hydrophobic but lipophilic, i.e., it is attracted towards hydrocarbons. When soap is added to water, soap molecules arrange themselves in a cluster, the non-polar portion out of water such that the non-polar ends are in the interior of the cluster attached with dirt and the polar ends are on the surface of the cluster. Since the dirt present on clothes is oily in nature and insoluble in water, the hydrophobic ends of the clusters attach themselves to the dirt. This cluster of soap molecule formation in which the dirt is entrapped is called micelles. Micelle formation does not occur in alcohol because the alkyl chain of soap becomes soluble in alcohol.
See lessHow can ethanol and ethanoic acid be differentiated on the basis of their physical and chemical properties?
Ethanol is a liquid at room temperature with a pleasant odour while ethanoic acid has vinegar-like smell. The melting point of ethanoic acid is 17°C. This is below room temperature and hence, it freezes during winters. For ex: CH3CH2OH + Na2CO3 → No Reaction Ethanoic acid reacts with metal carbonateRead more
Ethanol is a liquid at room temperature with a pleasant odour while ethanoic acid has vinegar-like smell. The melting point of ethanoic acid is 17°C. This is below room temperature and hence, it freezes during winters.
For ex: CH3CH2OH + Na2CO3 → No Reaction
Ethanoic acid reacts with metal carbonates and metal hydrogen carbonates to form salt, water, and carbon dioxide gas while ethanol does not react with them.
For ex: 2CH3COOH + Na2CO3 → 2CH3COONa + H2O + CO2
See less