Does a scientific fact and a scientific theory carry the same weight in the scientific community?
No, a scientific fact is a direct and observable observation while a scientific theory is a well-substantiated explanation of a natural phenomena based on evidence and experimentation. Scientific theories are more robust and comprehensive than facts as they explain why a phenomena occurs rather than just stating that it occurs.
Why is benzene stable to towards KMnO4 oxidation?
Benzene is stable towards oxidation of KMnO4 because it is a stable aromatic molecule. For an oxidation there would have to be a reaction, but since there is no reaction it is stable. Benzene is stable until there is a catalyst such as FeCl3, FeBr3, AlCl3, etc. This type of catalyst is used because it makes the bonding molecule more electrophilic and so it wants to attach to the electron-rich, also know as nucleophilic, benzene ring.
What is the significance of sodium-nitroprusside test?
The sodium nitroprusside test is used to detect the presence of reducing sugars in a solution. It is commonly used to identify the presence of glucose, sucrose, and fructose in urine samples for diagnosing conditions like diabetes. The test relies on the ability of reducing sugars to reduce the nitroprusside ion to a colored compound, indicating a positive result.
To determine the mass of oxygen in 10.0 g of zircon (ZrSiO4), we first need to calculate the molar mass of ZrSiO4.
The molar mass of ZrSiO4 = (Zr: 91.22 g/mol) + (Si: 28.09 g/mol) + 4(O: 16.00 g/mol) = 183.31 g/mol.
Next, calculate the moles of zircon in 10.0 g by dividing the mass by the molar mass: 10.0 g / 183.31 g/mol = 0.05452 moles.
Since each formula unit of zircon contains 4 oxygen atoms, the mass of oxygen in 10.0 g of zircon is 4 * 0.05452 moles * 16.00 g/mol = 3.84 g.
List briefly define the functional groups of signal lines for PCI?
Proteins are made up of amino acids, the building blocks of protein. Amino acids are linked together in a specific sequence to form a protein molecule. The sequence of amino acids in a protein determines its structure and function.
Define monosaccharide disaccharide polysaccharide?
In the category of carbohydrates, there are monosaccharides, disaccharides, oligosacchaides, and polysaccharides. Just from the prefixes, you can tell that the monosaccharides are monomers, the disaccharides are two bonded monomers (monosaccharides) and oligosacchaides and polysaccharides are made up of many monomers (monosaccharides).
The monosaccharides are just a single carbon ring (in the natural aqueous environment of an organism). The monosaccharides include glucose, fructose, and galactose. The disaccharides are two carbon rings bonded together by a glycosidic linkage in a condensation (dehydration) reaction, which removes a molecule of water. Disaccharides include maltose (glucose + glucose), lactose (glucose + galactose), sucrose (glucose + fructose), and more.
When we consume food, we are taking in the large polysacchaides such as starch and smaller molecules such as maltose. We take these long molecules and digest them - break up their glycosidic linkages until they are monosaccharides (monomers) that we can absorb throughout out alimentary canal (usually in small intestine).
A monosaccharide is one saccharide (or sugar) molecule. An example of a monosaccharide is glucose.
A disaccharide is two saccharides (sugars) bonded together through a dehydration reaction. An example of a disaccharide is maltose which is two glucose linked together.
A polysaccharide is typically ten or more saccharides bonded together. Cellulose is an example of a polysaccharide, which is ten or more glucose linked together.
Why should H Ac be added slowly to the milk with through stirring?
Adding hydrogen peroxide slowly and with stirring helps to ensure uniform distribution within the milk, which is important for achieving the desired antimicrobial effect. Slow addition also helps prevent localized high concentrations of hydrogen peroxide which could have negative effects on the milk's composition or quality.
What is the safe limit for vitamin c?
In an article entitled "Vitamins E and C Are Safe Across a Broad Range of Intakes" published in THE AMERICAN JOURNAL of CLINICAL NUTRITION, a large study concluded that Vitamin C supplements of up to 2000 mg per day were safe for most adults. Exceeding that limit could result in gastrointestinal upset or mild diarrhea.
The primary structure of a polypeptide with the sequence Gly-Phy-Trp-Val-His is: Glycine-Proline-Tryptophan-Valine-Histidine.
Is glycine a hydrophobic amino acid?
Glycine is usually classified as non-polar amino acid because it has just one hydrogen in the side chain. Since there is no significant difference in electronegativity between carbon and hydrogen- there is no polarity in the side chain.
Calibrated the spectrophotometer with?
a blank solution before starting the experiment to account for any background interference. This ensures accurate and reliable measurement of the absorbance values of the samples. It helps to establish a consistent baseline for the instrument to improve the precision of the results obtained.
To what class of chemical compound does lysozyme belong?
Lysozyme belongs to the class of chemical compounds known as enzymes. Specifically, it is a type of enzyme known as a glycoside hydrolase. Its primary function is to break down bacterial cell walls by hydrolyzing the glycosidic bonds in peptidoglycan.
What happens if you dont get enough Vitamin A?
If you don't get enough Vitamin A, you may experience symptoms such as dry skin, night blindness, and impaired immune function. Severe deficiency can lead to more serious conditions like xerophthalmia (a eye condition that can cause blindness) and an increased risk of infections. It is important to include vitamin A-rich foods in your diet to meet your body's requirements.
What vitamin deficiency is associated with alzheimers?
Studies have shown that there is a correlation between magnesium deficiency and memory loss. A study done last year by some researchers in MIT stated that Magnesium l-threonate helped with increasing short term and long term memory capacity.
How much dmso should be used for a c-18 hplc column to knock out everything retained in the column?
Depends on the column.....
For a regular C18, try running 10% methanol through and then full-loop injections of 50% DMSO repeatedly until you're happy with the result. Also, reduce the run-time. For me, 3 minutes for a 2x50mm.
The backbone of carbon in a carbohydrate comes from?
The backbone of carbon in a carbohydrate comes from simple sugar molecules like glucose. These sugar molecules link together in chains to form the structure of a carbohydrate.
Anything can kill you in high enough doses. For instance, if a case of vitamin c tablets fell on you, you could say that vitamin c kills you. You would be ill-advised to take such a high, 20 megagram dose.
What does vitamin c do to your body?
Maybe it helps you feel better when you are sick so you won't have to die easily. So please try your best to not get sick but if you do, use vitamin C.
Vitamin C is necessary for wound healing. It also helps the immune system and functions as an antioxidant.
Does urine contain minerals and vitamins?
Yes urine can contain both minerals and vitamins. Certain vitamins taken in excess would be excreted through the urine. Certain minerals can be found in urine as well such as sodium, potassium, chloride, magnesium, and calcium.
How can you stop eating washing powder?
just keep yourself away from it and if you are tempted walk away!
This is called pica and it is a sign that you are missing vitamins or minerals in your diet. You should talk to your medical doctor about it, eating soap powder is not healthy for you.
What is the difference between fat and oil?
Fat is made within the body tissues of recently living animals, whereas oil is either pressed from plants, as in Olive oil, Corn oil, Peanut oil, Corn oil or Safflower oil (whatever that is), or pumped from the ground as Fossil fuels.
In Food Science, Fat is solid or semi-solid at room temperature while oil is liquid at room temperature. This depends mainly on the fatty acid composition of the product (saturated vrs unsaturated fatty acids).
Will sugar in fruit elevate triglycerides?
The sugar in fruit will elevate blood sugar, but only fat elevates triglycerides.
High levels of sugar including candy, cakes, éclairs, chocolate and any other foods eaten in excess can elevate triglycerides
Are supportive calcium carbonate or silicon dioxide spines?
Supportive spines made of calcium carbonate are typically found in organisms like sea urchins, while silicon dioxide spines are more commonly seen in diatoms and certain plant species. Calcium carbonate spines provide structural support and protection, while silicon dioxide spines can act as both a protective barrier and as a mechanism for nutrient uptake. Both types of spines play important roles in the survival and function of the organisms that possess them.