Freezing-point depression

The melting point of a substance is best described as the temperature at which a solid becomes a liquid (Bruice 2014). On the molecular level, when a compound melts the forces between the molecules become weaker. This is because when a substances heats up the kinetic energy between the molecules increase causing the molecules to vibrate. When the vibrations become strong enough for the molecules to move around and pass other molecules, the compound that is being heated up starts to melt and…

Sometimes in life, one has to take chances. I was not sure of that until I strapped myself down in the scariest rollercoaster at Six Flags Fiesta amusement park. My heart was running a marathon as the ride climbed to the peak. My sweaty palms were glued on the back of a passenger’s headrest. My life was depending on it. My friend, Odina, was laughing beside me the whole time; she did not know how worried and anxious I was about this devastating rollercoaster. It is called the Iron Rattler, and…

The Fourteen Points was an announcement of standards for world peace that was to be utilized for peace transactions as a part of request to end World War I. The standards were sketched out in a January 8, 1918 discourse on war points and peace terms to the United States Congress by President Woodrow Wilson. On that day Wilson gave what was to end up his most well-known discourse. Knowing as Fourteen Points Speech because it plot the fourteen components for which Wilson felt would be the…

United Farm Family currently has. Mr. Bower referenced page 145 in Appendix for the actions of the Interest Rate Committee. The Interest Rate Committee did take action on older annuities and older deposit money to reduce the interest rate by 25 basis points. And, in addition, we had 14 older annuity products that had an excess interest rate that was not guaranteed that we removed to bring those down to a guaranteed rate. He stated that we are doing this to continue to mitigate the situation…

believed that the mistakes were what made the painting even more realistic. For example, take The Gust of Wind, not only is this Gustave’s interpretation of an oncoming storm in a peaceful meadow, it is his way of capturing the meadow at its weakest point. On…

important speech during January 1918 to the Congress. During his speech he defined the first Fourteen Points, and the points which was discuss by President Wilson was for peace program and also was an agreement between the allies for an armistice in 1918. The Fourteen which was made by President Wilson are very important for the history of United States and also for the World. The Fourteen Points by President Wilson was: Open diplomacy, Freedom of the seas, Removal of economic barriers,…

initial observation was the officials sprinkle salt only on roads that are icy . The question was what effect does salt have on the ice? Hypothesis was formulated, salt water will melt ice cube faster than the pure water because salt lowers the freezing point of ice in salt water. The prediction was ice cube melts faster in salt water than pure water. The following was the procedure of this experiment was: fill out 100mL water into each 250mL empty beaker, add 0.5grams of salt to one of the…

My first time at Cedar Point It was June 6th, 2016, the end of my eighth-grade year at TKMS, I woke up, at 5:30, jumped out of bed, got dressed, ate, and yelled at my mom to get in the car, all by 6:20. But of course we weren’t even close to ready, and we didn’t even need to leave until 7:30. So after reluctantly going back inside, to pack a spare pair of clothes, sunscreen, and our tickets (which we almost forgot), we were finally ready to go and it was already 7:40, “MOM!!!” I yelled…

Pathophysiology: Proteus syndrome is caused by an activating somatic mosaic mutation in AKT1, a gene which encodes the well-studied serine/threonine kinase PKB/Akt .1,2 Akt is the key mediator of the PI3K signaling pathway. In response to a growth signal (e.g. IGF, EGF) and the autophosphorylation of a receptor tyrosine kinase, PI3K is recruited and activated, generating PIP¬3 molecules at the lipid membrane. These partially activate Akt and also activate PDK1/2, which complete the Akt…

One in every 15,000 to 40,000 children have the disease known as achondroplasia. Achondroplasia is a genetic disease that occurs because of a mutation in the gene FGFR3 and is also the most common form of dwarfism known. The purpose of the gene FGFR3 is to make the proteins that are vital in the formation of bone tissue within the body. Because of this mutation people with achondroplasia have significantly shorter limbs than the normal person making them significantly shorter than most people…