Chemistry is the study of the composition, structure, properties, and reactions of matter. It involves the study of atoms and molecules and their interactions. Alchemy is an ancient practice that sought to change lead into gold. It was also concerned with the transformation of other materials into different forms. Alchemy has had a significant influence … Read more
The tablet that was left whole had an average dissolving time of 5minites 12 seconds, the halves had an average of 4 minutes 13 seconds , the thirds was an average of 4minutes 2 seconds and the last tablet, the quarters has the shortest time of 3 minutes 38 seconds My experiment was repeated three … Read more
First, the buffer was prepared by using the formula as follows: Figure 1: Calculation for prepare 0. 1 M potassium phosphate buffer at pH 6 3. 4007g of potassium phosphate was weighed and placed in 300 ml beaker. Then, 125 mL of water was added into the beaker that contained potassium phosphate. The mixture was … Read more
Constantly my chemistry teacher encourages us to shrink down to the size of an atom and see the world from a subatomic state. I encourage people to imagine themselves as an atom, as crazy as it seems, and direct their attention to the neoteric world around themselves. One may come to notice that atoms of … Read more
Making an Activity Series of Metals using different Solutions Purpose/ Hypothesis: The purpose of this lab was to clearly identify the reactivity of magnesium, zinc and copper. The metals reactivity will be exemplified as it will be tested with different solutions such as zinc sulfate (ZnSO4), copper sulfate (CuSO4), hydrochloric acid (HCL), magnesium sulfate (Mg2SO4), … Read more
The Determination of the Concentration of Hard Water lons by the Titration of EDTA By Hannah Denby Lab partners: Heidi Kiziah, Leonie Hamel University of Central Florida, CHM 2046L December 3rd, 2015 Abstract. The “hardness” of water is a common dilemma attributed by high concentrations of metals such as calcium and magnesium. This is a … Read more