Speed relative to CMB rest frame is 552 km/s. The Milky Way is the second largest galaxy in the local group.Andromeda Galaxy is bigger than the Milky Way. Mass of the Andromeda Galaxy is 7×1011 solar masses (Mo). The Milky Way's steller disk approximately 100,000 light years in diameter and 1000 light years thick. Mass of the Milky Way is 5.8×1011 solar masses (Mo).
In table 1. the pH of 7 has the highest rate of O2 production being 4.41mL/min while the pH with the smallest rate of O2 production being 0.21mL/min is 4. In either direction from the pH7 the average rate is decreasing similar of that to table 2s trend. In table 2. there is a pattern from the temperature of 0.C to 100.C the average change is 2.69mL/min at 0.C then at 23.C it is at its peak being 5.5mL/min but it then decreases again at 4.4mL/min at 37.C. the trend is that in either direction of 23.C the average rate of O2 produced is decreasing. As per table 3. there is a pattern with the enzyme concentration going from 100% to 0%, at 100% the rate of O2 production is at its highest being 7.79mL/min while at 0% the rate of O2 production is at its lowest being 0mL/min.
9. Theoretical yield = (150.22g/mol)(3.5 x 10^-3 mol of nucleophile) = 0.525 g Actual yield = 0.441 g, Percent Yield = (0.441g/0.525g) x 100% = 84% 10. Percent recovery from recrystallization = (0.172g/0.441g) x 100% = 38% 11. The data table provided below obtained melting point data for crude product, pure product, and mixture of the pure and 4-tert-butylbenzyl. 12.
2.0 LITERATURE REVIEW 2.1 History background and action level Radon is a gaseous highly radioactive element discovered by English physicist Ernest Rutherford in 1899. The discovery is also credited to German physicist Friedrich Ernst Dorn in 1900. More specifically, Rutherford discovered radon's alpha radiation and Dorn discovered that radium was releasing a gas. Radon (chemical symbol Rn) is a naturally occurring radioactive gas found in soils, rock, and water throughout the U.S. It has numerous different isotopes, but radon-220, and radon-222 are the most common (EPA, 2009).
The theoretical molar mass of butane was found by adding the molar mass of each element that makes up butane. This means that the molar mass of carbon was multiplied by four and added to the molar mass of hydrogen multiplied by ten, yielding a molar mass of 58.124g/mol. The calculated molar mass of butane was found by using the equation, M = (DRT)/P, where the density was found by dividing the mass of butane collected by the volume of butane in the graduated cylinder in liters and the pressure was the partial pressure in kilopascals of butane. After finding these two values, they were subtracted, divided by the theoretical molar mass of butane, and finally multiplied by
Nitrogen Nitrogen is an element, in which its name is derived from the Latin word ‘nitrum’ known to be the fifth most abundant element in the universe. Nitrogen is one of the building blocks of life; living organisms may cease to exist without the existence of nitrogen. It can be said that nitrogen makes up of 80 percent of our atmosphere. It has an atomic number of 7 and is located in the far left of the periodic table. The element belongs to Group 15, Period 2 and p Block and has an electronic configuration of 1s2 2s2 2p3.
Calculations: how did we calculate and determine the mass of magnesium oxide? we Determined the mass of MgO (magnesium oxide) by subtracting the mass of the crucible with lid on from the mass, weight of the crucible with lid, and magnesium oxide. then in order to determine the oxygen mass, we will subtract the mass of the magnesium from the mg oxide to find out the amount of magnesium in the compound, divide the mass of Magnesium ( numbers of grams in one mole of magnesium we did the same way to find the amount of oxygen, where we divided the mass weight of oxygen with the numbers of grams in one mole of oxygen. and lastly in order to determine the empirical formula of magnesium oxide we Used the molar ratio to determined it. mass of Mg= o.122g mass of magnesium oxide=0.25 mass of magnesium oxide - mass of Mg + mass of O 0.25g= 0.122g + mass of O mass of O = 0.25g- 0.122g = 0.128g moles of Mg = 0.122g x 1 mol of Mg divided 24.30g Mg ( mass of magnesium) = 0.122 mol Mg moles of O = 0.25g O x 1 mol of O divided by 16g of O = 0.25 mol o the ratio = 1:1 there is one mol for mg for one mol of O, therefore there will be 1 atom of mg for 1 mol of oxygen.
The action of the pilocaripne would be of about 0.5% to 4% depending on the strength of the pilocarpine used. The time it took to reach the maximum concentration, which was 3.7mg/ml, was of about 0.5 to 1 hour. Sustained release of pilocarine was observed due to the ocular system, of about 20 to 40 mcg/hour, only reaching the maximum effect of 1.5 to 2 hours after the application of the
This sun is 432,288 miles across and the galaxy is supposedly 6,213,711,922 miles wide. It takes 250,000,000 light years for the sun to orbit the galaxy. There are approximately 100 billion different solar systems in the Milky Way. Our dolor system is 25,000 light years away from the center of our galaxy. Our galaxy is so big we have only gone 19.5 kilometers from home.
Together with Spitzer and James Clerk Maxwell data, these observations allowed the astronomers to calculate a star-forming rate of about 1,000 to 4,000 stars per year. At that rate, the galaxy needs only 50 million years, not very long on cosmic timescales, to grow into a galaxy equivalent to the most massive ones we see today. The Baby Boom galaxy is named that because its high number of stars generated per year. At that rate, the galaxy needs only 50 million years to create as many stars as the most massive galaxy ever observed. The discovery also challenges the accepted model for galaxy formation, which has most galaxies slowly bulking up by absorbing pieces of other galaxies, rather than growing internally.