Egg yolk is the nutrient rich portion of the egg that caters to the nutritional needs of the growing embryo. Egg yolk is rich in many vitamins, minerals, phospholipids and proteins. Vitamins include the fat soluble ones-A, D, E and K. Minerals like phosphorus, calcium, iron and zinc are present abundantly in the yolk. Egg is also rich in the glycerophospholipid, lecithin. Cholesterol, a type of lipids is also abundant in the yolk.
So, the correct answer will be C) Lecithin
Answer:
Explanation:
Magnetic fields can be measured in various ways. If this device, called a dip meter, is first aligned in the direction of the magnetic meridian as defined by a compass, the needle lines up with the total field vector and measures the inclination angle I
Answer:
Solution III < Solution II < Solution I < Solution IV
Explanation:
I)
Due to the rate of neutralization is 1 mol of NaOH with 1 mol of HCl and that we have equal volumes of both solution with the same concentration, they neutralize each other leaving a neutral pH (pH=7). Althought, because your titrating agent is a base the equivalence point will be a bit alkaline.
II) The same as the point I) but now the titrating agent is the acid, the equivalence point will be neutral trending a bit to acid.
III) Given that we have one strong acid neutralizing a weak base solution, in the equivalence point the the pH will be acid because the HCl (strong) dissociates compleately so we will have the 0.01 mol (100 ml of 0.1 M) of HCl with 0.01 mol>CH3NH2 (because is a weak base). How much less than 0.01 mol we have? <u>It depends of the strengh of the base and the pH will also depend on that</u>.
IV) This case is similar to the last one but with a strong base and a weak acid. So with a similar deduction the pH in the equivalence point will be alkaline (pH>7). How much? It depends on the strengh of the acid.
<u>In order of increasing pH: </u>
Solution III < Solution II < Solution I < Solution IV
The correct answer is C. Because sunlight hits the Earth's surface at a greater angle near the equator.