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Why when extracting DNA from onion cells why is the mixture heated to 60 degrees for 15 minutes?
Wiki User
∙ 12y ago
so as to kill the cell
Wiki User
∙ 12y ago
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What temperature does mild steel need to be heated for thermal cutting to occur?
heated up to kindling temperature of the mild steel
How much water can be heated up by 1 degree with 1 calorie of energy?
The definition of a calorie is that, it's the energy needed to increase the temperature of 1 kilogram of water by 1 °C.
Function clay triangle?
A clay triangle is a piece of laboratory equipment used in the process of heating substances. It is used in conjunction with other lab equipment to create a stable framework in which to place a substance -- usually a solid chemical -- while it is heated to a high temperature
What is called 'shape selective catalysis'?
The catalytic reaction that depends upon the structure of pores of the catalyst and the size of the reactant and product molecules is called shape/selective catalysis. Zeolites are good shape/selective catalysts because of their honeycomb-like structures. Zeolites are aluminosilicates i.e., three dimensional network silicates in which some silicon atoms are replaced by aluminium atoms. They are found in nature as well as synthesized for catalytic selectivity. Zeolites, before using as catalysts, are heated in vacuum so that the water of hydration is lost. As a result, zeolite becomes porous i.e., the cavities in the cage-like structure which were occupied by the water molecules become vacant. The size of the pores generally varies between 260 pm and 740 pm. Thus only those molecules can be adsorbed in these pores whose size is small enough to enter these cavities and also leave easily. The reactions taking place in zeolites depend upon the size and shape of reactant and product molecules as well as upon the pores and cavities of the zeolites. That is why these types of reactions are called shape-selective catalysis reactions. Zeolites are being very widely used as catalysts in petrochemical industries for cracking of hydrocarbons and isomerisation. An important zeolite catalyst used in the petroleum industry is ZSM-5. It converts alcohols directly into gasoline (petrol) by dehydrating them so that a mixture of hydrocarbons in formed.
How much does it cost to install ceramic tile floors?
I am a contractor, have been for 10 + years and my company charges $4.75 per square foot. That includes your durrock and underlayment. However it DOES NOT include you tile or grout. When you get into walls, showers, or irregular areas the price does vary. If you have 3/4 inch subfloor don't let anyone else convince you that you need any other underlayment or anything such as that. It is not necessary and they are simply selling you what you don't need. If you are wanting a heated floor system mats are not the way to go. We use a heater wire that comes on a roll and is much cheaper and much easier to install.
What happens to some when a mixture is heated?
It depends on what the mixture is.
A gas heated to millions of degrees would emit?
A gas heated to millions of degrees would emit X-rays.
How long should you bake boneless fish?
I'd recommend no longer than 20 minutes in a pre-heated moderate oven (about 180 degrees Celsius)
How long to reheat pizza in the oven?
The time required to bake a pizza depends on the heat of the oven. A typical frozen pizza will bake in 17 minutes or so in an oven heated to 375 degrees F. The same pizza might be ready after only 8 to 10 minutes in an oven heated to 500 degrees F.
How does the heating with carbon monoxide process work when extracting minerals from its ores?
It can reduce the oxidation state of the mineral in the ore being heated.
How did the properties of sulfur alone compare with the sulfur in the unheated iron sulfur combination?
Sulfur before being heated in the mixture weighs less and is less reactive than in the heated mixture.
How did the properties of the iron alone compare with the iron in the unheated iron-sulfur combination?
Sulfur before being heated in the mixture weighs less and is less reactive than in the heated mixture.
What temperature do you cook chicken at to kill salmonella?
Salmonella is a pathogen, which perishes after being heated to 55 celsius for 1 hour or 60 degrees celsius for 30 minutes. Food should be heated for 10 minutes at 75 degrees celsius so that the centre of the food reaches that temprature. Salmonella is not destroyed by frreezing, and prospers at normal body tempratures.
What should invalid heated pool temperature be?
Skin temperature is about 88 degrees F. A pool heated to 88 degrees is almost instantly comfortable.
How do you cook enchiladas?
Once the enchiladas have been prepared heat the oven to 350 degrees. Once heated cook the dish for 20 to 25 minutes until cooked through.
What happens to copper oxide when its heated?
if it is heated above 1200 degrees celsius than it melts
How long do you bake a 2.5 lb pork loin?
1.5 hrs @pre-heated oven of 350 degrees. 1.5 hrs @pre-heated oven of 350 degrees.
