crystallization indicates that the solution has become statured. This means that at each temperature recorded the solution contains the maximum quantity of solute that can be dissolved in that amount of solvent. Standard solubility table of Ammonium chloride Solubility g/100gH2O Temperature /°c/±0.1 60‚3 71‚3 55‚5 59‚3 51.3 52‚4 47‚7 47‚2 43‚4 41‚8 Uncertainties and errors of volume and temperature VOLUME H2O/ml/±0.05 Percentage uncertainty/% Temperature/°c/±0.1 Percentage
Premium Solubility Thermodynamics Temperature
Lithium‚Sodium‚Potassium‚Rubidium‚Caesium and Francium are all part of group 1.They are metals that can be easily cut.After being cut‚it is shiny but it quickly tarnishes due to the fact that the metal reacts quickly with oxygen or water.The shiny surfaces of Sodium quickly tarnishes more quickly than Lithium and Potassium more tarnishes more quickly than Lithium.This shows that the reactivity increases as we move down the group. Figure 1 Elements Melting point Boiling point Thermal
Premium Chemical element Periodic table Chemistry
energy lost by Calcium Chloride and gained by Ammonium Nitrate when dissolved in Water. Theory: Exothermic reactions are when net energy is lost in process of reaction. When solid calcium chloride (chemical formula CaCl₂) is placed in water‚ the calcium chloride dissolves and liberates heat in the process. Calcium chloride is one of the ingredients in instant "hot packs" sold in retail stores. Some concrete mixes incorporate calcium chloride to decrease drying time. Calcium chloride is also used as a
Premium Thermodynamics Chemical reaction Chemistry
When a ball is dropped/ thrown to the ground‚ gravity forces the ball to move downwards‚ whilst the ball falls down‚ the Gravitational Potential Energy (GPE) that the ball has transforms into Kinetic energy. As the ball hits the ground with maximum Kinetic energy‚ the forces in play flatten and deform the frame/shape of the ball by compressing and dispersing the molecules that essentially make up the ball. As stated in the law of conservation energy‚ energy can neither be created nor destroyed; rather
Premium Potential energy Kinetic energy Energy
the affirmative action has not completed its intended purposes of presenting minorities with equal rights. And that it is needed now just as much as it was needed in the past. The affirmative of action was first introduced by President John F Kennedy‚ but was later signed by President Johnson in July 2nd‚ 1964. Affirmative action is an action for institutes to encourage diversity among their pools of people‚ by hiring people that have historically been kept out. The affirmative action has created many
Premium Affirmative action Discrimination Black people
dissolve in water. Conversely‚ soap can suspend these in such a way that it can be discarded through its ability to act as an emulsifying agent. This emulsifying agent enables the dispersion of liquid into another immiscible liquid. In this manner‚ oil does not mix with water whereby able to induce dirt. 2. Raw materials and soap making Soap making requires two major raw materials: * Fats and oils Fats and oils are esters of fatty acids and glycerol. These are obtained from natural substances
Premium Sodium hydroxide Soap Sodium chloride
Chris Holet 7 – 20-12 Steriochemistry of Bromine Addition to trans-Cinnamic Acid Purpose: To carry out the addition of bromine to trans-cinnamic acid and to identify the product from its melting point. Molecular Structures and Chemical Reaction(s): Results and Calculations: Table of reagents Name Density (g/ml) Amount used Amount # moles Bromine (excess) Trans-cinnamic Acid 1.246 g/cm3 0.148g – do conversion Dichloromethane 1‚3266 g/cm3 -
Premium Stoichiometry Bromine Chemical reaction
Gracen Seiler April 7th‚ 2015 Section- 109 Investigating Stoichiometry with Sodium Salts of Carbonic Acid Introduction- This experiment is intended to help find a better understanding of chemical stoichiometry through titrations of NaHCO3 and NA2CO3 with HCl. A chemical reaction is a process that involves rearrangement of the molecular or ionic structure of a substance‚ as opposed to a change in physical form in a nuclear reaction. Titration is when a measured amount of
Premium Hydrochloric acid Sodium carbonate Chlorine
ISE: The Determination of Chloride Unknown: #34 I. Purpose: In experiment V‚ “ISE: The Determination of Chloride”‚ the concentration of an Unknown Chloride solution‚ and the Wt% of NaCl in a sample of celery salt‚ were both determined. To determine the concentration of an Unknown Chloride solution‚ a Calibration plot is first prepared. The Calibration plot is made by first measuring a series of known concentrations of Cl- (with the same activity of the unknown solution) and obtaining
Premium Chemistry Chlorine Water
Affirmative Action the good‚ the bad and the ugly Dawn Fletcher-Adams University of Louisville Soc 210-01 Race in the United States America is called “the land of opportunity” however‚ most of the countries citizens are not able to enjoy the benefits that the title provides. Being able to accomplish scholastic goals‚ attend a four-year college‚ and to have an influential career‚ are not obtainable for many‚ even though they work hard. Our nation has long been plagued by an ugly occurrence
Premium Affirmative action Discrimination Black people