Naked mole rat

The current standard for the kilogram is the International Prototype Kilogram. The International Prototype Kilogram, also known as Le Grand K, is a platinum-iridium bar made in the 1880’s. This official Kilogram is kept in a vault in Paris under two glass domes. The reason it is under 2 glass domes it to prevent dust from obstructing from the weight of the Kilogram. However according to Sandia National Laboratories, a government organization under the Department of Energy, “Of the seven units of…

volume of a mole of H₂(g) is at STP by using gas laws. The hypothesis for the experiment is that if H₂(g) is produced at RT and STP, Avogadro’s law can be used to experimentally determine the amount of H₂(g) because equal gases at the same pressure and temperature have the same amount of particles. In order to find the molar volume, hydrogen gas was produced in a eudiometer tube by reacting magnesium and hydrogen chloride. The results showed that the molar volume of H₂(g) was 27.5L per mole of…

Tiny Tina Psychoanalytic Tiny Tina is a character within a videogame called Borderlands 2. She has no concept of empathy for other people and almost no concept of ego or superego. She demonstrates that she is all id because she likes explosions… and in particular, blowing people up with those explosions (She feels no remorse afterwards). She is introduced by blowing up a bandit. Her go to defense mechanism would be denial. TIny Tina has her own downloadable content called “Tiny Tina’s Assault…

My earliest memory of science is from 5th grade in Mr. Kern’s class. I remember we had a unit on sea creatures, and we got to take care of and study fish and crawfish. I loved this activity because it was so hands on and we were the caretakers of the creatures, so we did all the work. It was really our own experiment, not just something out of a book. We all loved coming into class in the morning and running to see our new pets, and one day I noticed my crawfish had lost its shell. We learned…

colligative properties studied in this current chapter of chemistry are: vapor pressure lowering, boiling point elevation, freezing point depression, and osmotic pressure. The van’t Hoff factor for a solute is equivalent to the number of particles, in moles, will break apart in the solvent. When an…

Acid ((g/L)/(given density)) * 100 ((35.85 g/L)/(1005 g/L)) * 100 = 3.57% UNKNOWN ACID 1) Moles of NaOH ((Vf - Vi)/1000) * M Run #1: ((31.11 – 0.51)/1000) * 0.2116m = .006475 Run #2: ((31.35 – 0.38)/1000) * 0.2116m = .006553 2) Calc Moles of Acid because 1:1 ratio moles acid equals moles NaOH moles acid = Run 1: .006475 and Run #2: .006553 3) Molar Mass (grams used/moles acid) Run #1: (1.3160g/.006475) = 203.24 g/mol Run #2: (1.3276g/.006553) = 202.59 g/mol…

problem of the experiment was to determine the volume of one mole of H_(2(g)) at STP. In a way, the problem is essential in understanding how one mole of an ideal gas at STP is always equivalent to 22.4 L. By determining if the volume of a mole of H_(2(g)) is 22.4 L, it supports Avogadro’s law that one mole of an ideal gas occupies 22.4 L at STP. At the same time, it indicates that a direct relationship exists between volume and the number of moles of gas as temperature and pressure stays…

and 4. Periodic tables vary in atomic mass slightly and this slight difference of atomic mass of elements could in turn change the value of calculated molar masses in experiments 2 and 4. Lastly, the molar mass of air was given to be 28.8 grams per mole and this could in fact be different from the true air mixture of the lab in which the experiment was conducted. A variety of conversion factors were utilized to calculate data and similar to periodic tables, most conversion factors vary slightly…

Moles 1.How is molar mass calculated and why is it useful? Molar mass is calculated by going to the periodic table finding each mass of each element in the compound then adding them all up based on how many of those elements are in the compound. 2.Define a mole in chemistry and give 3 examples equivalent units that are used in chemical calculations. Mole is considered the unit for amount in chemistry other units that are equivalent are atoms, formula units, and molecules. Gas Laws 3.How is the…

On a final note, it is one thing to be a cat and it is another thing to be a good one. Up there,in the high societies, are lots of wealth and riches that are maintained by secrecy. A cat that cannot see or feel and keep quiet, constitutes danger or problems to those high societies and such a cat is easily removed or killed, as there are also lots of rules guiding the high societies. The bible said in John 8 verse 32 that ye shall know the truth and the truth shall make you free. Yes, this is…