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What happened to the needle when you added 2-3 drops of the detergent solution?
Wiki User
∙ 10y ago
If you have floated a needle on the surface of the water in a glass then adding a little detergent will cause the needle to sink.
This is because the presence of the detergent changes the surface tension of the water so that it can no longer support the needle.
Wiki User
∙ 15y ago
Wiki User
∙ 10y agoThe needle floats on the tensioned surface of the water. When the detergent is added, the surface tension is broken and the needle sinks. Larva of mosquitoes hang from the surface to breath air. Pond-skaters can move across the surface, as can many aquatic insects. Detergent will also cause insects to sink.
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How can you break the attachment of molecules in the surface tension?
The surface tension of water can be broken by adding dishwashing detergent to the water. This can be demonstrated by filling a bowl with water, then floating a needle in it. This may sound almost impossible, but it can be easily achieved by placing the needle on a tissue, then carefully floating it on the water. When the tissue sinks, the needle should remain on the surface. It is prevented from sinking by the water's surface tension. Carefully add one drop of dishwashing detergent, and the needle will sink. You can prove this was due to the surface tension being broken by trying to float the needle again. If you added enough detergent this should be impossible, as detergent acts as a wetting agent and breaks the surface tension.
Why was detergent added to extraction buffer?
because it can break through the membranes to get to the DNA
What is the difference between detergent non detergent oil?
Detergent oil has added chemicals to clean and control sludge formation. Non-detergent is plain oil. Unless you have a really old engine that hasn't been apart for 50 years you want to use detergent oil.
About foaming capacity of detergent?
Detergents contain surfactants molecules which are characterized by a hydrophilic head and a hydrophobic tail which stabilizes the bubbles in water and results in form. When detergent powder is also added to a soapy solution, (eg. while washing clothes) it is shook en up with all other clothes, that is why there are bubbles formed which causes foam.
which of the following best describes a solution that contains a buffer?
sodium hydroxide, a base, is added to the solution, but the pH of the solution does not change.
What happen to the needle when you added 2-3 drops of the detergent solution?
The needle floats on the tensioned surface of the water. When the detergent is added, the surface tension is broken and the needle sinks. Larva of mosquitoes hang from the surface to breath air. Pond-skaters can move across the surface, as can many aquatic insects. Detergent will also cause insects to sink.
What will happen to a needle if pinch of detergent is added to a water?
If you have floated a needle on the surface of the water in a glass then adding a little detergent will cause the needle to sink. This is because the presence of the detergent changes the surface tension of the water so that it can no longer support the needle.
Why is it that a needle may float on a clean water but sink when detergent is added to the water?
Because the detergent reduces the surface tension of the water.
When liquid is added to a solution of a detergent in water the detergent breaks up large globules of the lipid into much smaller globues what effect do you think a detergent would up large globules o?
no
Why is detergent added to the extraction buffer?
The detergent was added because it breaks open the cells by destroying fatty membranes that enclose the cell, thus releasing the DNA into the solution.
What would happen if you added cabbage juice indicator to dishwasher detergent?
If the pH of a detergent is usyally greater then 7 the juice of red cabbage become blue to green in this solution.
How can you break the attachment of molecules in the surface tension?
The surface tension of water can be broken by adding dishwashing detergent to the water. This can be demonstrated by filling a bowl with water, then floating a needle in it. This may sound almost impossible, but it can be easily achieved by placing the needle on a tissue, then carefully floating it on the water. When the tissue sinks, the needle should remain on the surface. It is prevented from sinking by the water's surface tension. Carefully add one drop of dishwashing detergent, and the needle will sink. You can prove this was due to the surface tension being broken by trying to float the needle again. If you added enough detergent this should be impossible, as detergent acts as a wetting agent and breaks the surface tension.
When any three colours or food dyes are added to milk and after addition of a detergent or vim solution three dyes spread on the milk what was this phenomenon called?
homogeneisation
How can medications be administered intravenously?
minerals like potassium and calcium, vitamins, or drugs can be added to the IV solution by injecting them into the bottle or bag with a needle.
Why is detergent hot when water is added?
because of exothermic reaction b/w water and detergent
What happened when impurity is added in phenol water system?
the critical solution temperature for phenol water system increases
How can I get detergent coupons added to my grocery rewards card?
You can get detergent coupons added to your grocery rewards card by visiting ehow.com. They explain where to go and how to load grocery coupons on your rewards card.
