Calcium hydroxide

calculation, the experimental data as well as the chemical reaction of calcium hydroxide was used for all calculations. The chemical equation is displayed below: The first experiment determined the molarity of OH- and Ca2+, the Ksp and the ΔG for saturated calcium hydroxide at 21°C. In order to determine these values, the experimental data as well as the chemical reaction of calcium hydroxide was used. The molarity of OH- and Ca2+ was discovered to be 0.028 M and 0.014 M respectively. The Ksp was found to be 1.144 x 10-5 and ΔG was discovered to be 27.470 KJ/ mol. The second experiment determined the molarity of OH- and Ca2+, the Ksp and the ΔG for saturated calcium hydroxide at 60°C. The molarity of OH- and Ca2+ was discovered to be 0.029 M and 0.014 M respectively. The Ksp was found to be 1.316 x 10-5 and ΔG was discovered to be…

Evidence and Analysis: The literature Ksp for calcium hydroxide is 5.02×〖10〗^(-6), which is a relatively large Ksp value. This goes against the “rules of solubility” that labels calcium hydroxide as insoluble. According to the “rules of solubility”, calcium hydroxide should not be soluble in water; however, our results reveal that it does have some degree of solubility at standard conditions. We know this because we started with an initial concentration of calcium hydroxide and no concentration…

Calcium hydroxide (Ca(OH)2), universally referred to as lime water or slaked lime is formed by reacting hydrated lime (calcium oxide, CaO) with water (H2O)[1] CaO (s) + H2O (l) ⇌ Ca(OH)2 (aq) (ΔHr = −63.7 kJ/mol of CaO) Calcium hydroxide is an economically favorable alkaline reagent to neutralize acid as it yields 2 moles of (OH)2 for every 1 mole of Ca(OH)2 (which is slightly soluble in water) when compared to sodium hydroxide [1] and it may separate from the solution ‘constant agitation must…

used in research of other possible fuels by finding the cost to produce it and comparing it to the amount of energy it will provide to find out if it is a worthwhile investment. The main objectives of this lab are to find the energy changes in reactions two and three then using two and three find the ideal reaction one’s change in energy. The general experimental design is that using a calorimeter you would first find the change in energy of calcium carbonate reacting with two hydrochloric acid…

freight train derailed causing a possible spill of the chemical contents it carried. According to the District of Columbia Fire and Emergency Medical Services department (DCFEMSD), the derailed train in northeastern Washington DC resulted in the leakage of hazardous chemical material by three cars (Washington, 2016). The total amount of cars sent outside the railroad in the derailment incident was however, confirmed to be 14 according to CSX. The possible extent of the hazardous spillage had not…

INDEPENDENT PAPER. CALCIUM: A REACTIVE AND STRENGTH ELEMENT. Mariana Escobar Introduction to chemistry I- with Lab CHE 101-360 Dr. Rebbeca Hoenigman April 19th 2018 Calcium, Ca. Molar Mass 40.08 Chemical reaction: calcium with air: 2Ca(s) + O2(g) → 2CaO(s) Chemical reaction: calcium with water: Ca(s) + 2H2O(g) → Ca(OH)2(aq) + H2(g) Calcium is a familiar element for most of the people at the moment of looking to a periodic table, including oxygen and hydrogen. Because…

Introduction Water hardness is defined as the sum of the concentrations of Ca2+ and Mg2+ in a water sample which is measured by amount of CaCO3. Typically, water hardness indicates the water quality, as hard water has greater concentrations of Ca2+ and Mg2+ and soft water has proportionally less concentrations of the aforementioned ions.1 Water that contains Ca2+ and Mg2+ concentrations above 100 milligrams per liter (mg/L) is categorized as hard while soft water contains ion concentrations…

Micro-fracture consolidation can be treated with bone remodeling, and the adaptation of skeleton is applied to “calcium homeostasis” and to mechanical use. The bone remodeling involves the bone resorption regarding to osteoclasts and bone formation relating to osteoblasts. Regular bone-related diseases including “bone-metastasized cancers”, Paget’s disease, multiple myeloma, and osteoporosis are caused by the disproportion between the resorption and formation processes. The increased…

The Salter-Harris classification is a radiologic classification system, developed in the 1960s, to describe fractures involving the growth plate in pediatric patients.1 It divides the fractures into five categories based on the extent of damage to the growth plate based on the mnemonic SALTER; type I: Slip or Separation of the growth plate, type II: Above the growth plate, type III: Lower than the growth plate, type IV: Through the growth plate, and type V: Raised epiphysis. Children have open…

Opening: Calcium which is a chemical element existing in daily life. It doesn’t contain not only in the usual suspects like yogurt, milk, and cheese, but also canned salmon and sardines, broccoli, kale and collard greens, and juices. Research shows that more than a third of each person is not provided enough of this substance which is essential for building and maintaining strong bones. It also helps muscles work and nerves deliver messages from the brain to other parts of the body. But not…