Alkali

Ref: Saunders N. 2000, Creative Chemistry You have seen that the Group 1 alkali metal elements increase in reactivity as you go down the group. Sodium is less reactive than potassium, which is less reactive than rubidium (which you weren’t allowed to observe directly!) Today, you will use displacement reactions to work out the order of reactivity of the Group 17 halogen elements using chlorine, bromine and iodine. Hypothesis: The higher on the periodic table the more reactive the element…

neutralization response to a certain quantity. Acidic buffer answers are those that have robust acids and weak bases as their components. they're used for neutralizing alkaline solutions. Alkaline or primary buffer answers are those who have sturdy alkalis and weak acids within themixture. they're used for neutralizing acidic aqueous answers. Buffer solutions in the blood Blood itself has a tendency to be a buffer solution by using keeping its pH price regular. Buffer solutions assist inside…

Chemistry is the study of atoms. Chemical scientists study what atoms are made of and how they connect. Atoms are the building blocks of matter. Atoms are made up of protons, neutrons and electrons. It was John Dalton who put forward his ideas and theories about atoms at the beginning of the 19th century: Dalton proposed that atoms were like tiny, hard balls (Absorb Learning, 2008). Then at the end of the 19th century JJ Thompson discovered the electron through an experiment. When JJ Thompson…

Within literature and cultures around the world, the basic aspects of a hero is universally shared. A hero can contain numerous qualities, and are most commonly notable for their physical or mental attributes that influence their heroic actions. A hero can often be reduced to a few words: strong, courageous, smart, or brave. Their actions can be simplified to an individual that protects or saves the masses or another individual. In short, an individual who makes a significant change in their…

Everything is made of atoms, which are the smallest representative parts of each of the ninety-two elements that occur in nature. Elements are either metals, such as iron, copper or calcium or non-metals such as carbon, oxygen or nitrogen. Chemistry is concerned with the way atoms link together to form molecules, which are the natural chemical units of matter. Molecules represent the smallest particle of a chemical compound which retains the characteristics and chemical properties of the…

Nitrogen (N₂) is a colorless, odorless, largely inert gas with a hexagonal structure that is essential to life on earth. This nonmetal is number seven on the periodic table; in its neutral state, it has seven protons, seven neutrons, seven electrons, and an average atomic mass of 14.0067 amu. The electron configuration of this element in ground state is 2-5. Its discovery, safety, availability, and uses are important in understanding this element and its significance. Nitrogenous compounds…

Biofuels have started to become one of the major fuel sources from around the world. A biofuel is any fuel that is derived from recently living organisms. It accounts for just over 10% of America’s total gasoline consumption (Solutions and Energy, 2016). We start to move towards these fuels as it is expected that by 2088 we will have run out of all of our fossil fuels (Ecotricity, 2016). There are however various pros and cons that derive from the biofuels in comparison to the fossil fuels. I am…

These families, shown and labeled in figure 2, include alkali metals, alkaline earth metals, transition metals, non-metals, metalloids, halogen gases, noble gases, lanthanides (or rare earth metals), and actinides (or rare earth metals). The first family includes group 1 on the periodic table. These metals are…

Table 4.2 System suitability results for Lamivudine, Zidovudine and Nevirapine Parameters Lamivudine Zidovudine Nevirapine Retention time 2.327 2.864 5.608 Area 212473 338930 228426 USP Plate count 2715.09 3350.07 4979.51 USP Tailing 1.38 1.32 1.18 4.3.1.2 Linearity A linear correlation coefficient factor was obtained between the concentrations of Lamivudine, Zidovudine and Nevirapine versus the peak area. The calibration curves were linear for concentrations between 15-150 µg/mL. The linearity…

“Memento mori” is a Latin expression that roughly translates to “remember that you are mortal,” or “remember that you will die.” We all strive to live our lives as best as we can, but never forget that we are mortal and at some point everything will come to an end for oneself. Everybody has undoubtedly pondered at some point about what lies beyond death. While most people focus on where their soul and consciousness will go beyond the grave, Mary Roach’s “Stiff: The Curious Lives of Human…