Sodium Chloride Lab Report

Most of the physical properties of the unknown substance were typical of Calcium Chloride. The unknown substance was crystals and odorless, just like Calcium Chloride1. However, the unknown substance had a pH of 5 while Calcium Chloride has a pH of 92. This difference could be contributed to other substances in the solution. The solution was made with tap

The purpose of this lab was to find out how gaviscon reacted with different salt solutions. Sodium Alginate is a compound that forms with the Gaviscon and forms a “raft” and blocks all the stomach acid from traveling up the esophagus.

5. Was there any evidence that some of the copper (II) chloride was left in the beaker? Explain.

If a salt concentration is too high or low, enzyme activity will happen overly slow (if at all) or excessively fast. None of the concentrations used during this experiment were high enough to shift the shape on an enzyme’s active site, or denature a protein. Of the four concentrations used in this experiment, 10% and 20% salt concentration have the smoothest curves and lowest absorbance. This leads us to believe that of the four different concentrations, 10 and 20% concentrations are optimal for enzyme activity compared to the lower concentrations. We reject the null hypothesis, because the higher salt concentrations are, the slower the rate of an enzyme reaction will become.

1. An elderly male patient acquires a wound infection via a rusty metal cut and a Clostridium infection is suspected. The patient previously had a heart attack, is hypertensive and on medication. The patient recently presented symptoms of polyuria, polydipsia, polyphagia and fatigue the patient is suspected to be diabetic with increased triglycerides, urea, HbA1c, sodium, potassium and creatinine and his full blood count revealed increased WCC, low RBC, Plt, HCT & MCH,high RDW

From the Module 5: Ion channels part 2, an action potential is generated by voltage gated sodium and potassium channels and happens when the intercellular sodium influx is greater than the intercellular potassium influx. When a cell encounters a stimulus or an injection, the cell depolarizes. Sodium’s equilibrium potential is around +40-50mV, causing the electrochemical force to drive the cell as close to its desired potential as possible. As more of the cell depolarizes more sodium’s equibrium potential becomes smaller creating a larger sodium current. Sodium would remain at its equilibrium potential if not for the opposing forces such as sodium channel inactivation and potassium channel activation. Different from deactivation, sodium channels have a

To determine each solution's freezing point certain methods and materials were used. First, two weighing boats were labeled NaCl and CaCl2. Each weigh boat was placed on the scale to calculate the initial weight of the boats. 2.0g of sodium chloride was added to the boat labeled NaCl and reweighed. The same was done for CaCl2, then the freezing point apparatus was assembled. Using a 600mL beaker filled with ¾ full of ice, the remainder of NaCl was poured into the beaker and mixed. The thermometer was placed into the ice bath beaker until it became -10C. Four test tubes were labeled 1-4. For test tube 1, a 100mL graduated cylinder was used to measure 15mL of water and then poured into tube 1. After the temperature reached -10C, the thermometer

Conclusion and evaluation Investigating the effect of pH on the concentration of chloramines and evaluating their effects in pool water was the aim of this experiment and research. With the data collected and processed, I can now discuss the extent of influence of pH in chloramine treatment as well as the success of this experiment. The experiment prove that pH is a very crucial agent in cleaning of a pool. A pound for pound efficiency is almost guaranteed for chlorine administered in any form if proper pH management is considered. Looking at the dissociation of hypochlorous acid under different pH values, it can be proven that the lower the pH the better the efficacy of chlorine.

In this experiment, trimyristin, a saturated fat and ester, was isolated from nutmeg and underwent a saponification reaction to form sodium myristate, the sodium salt of myristic acid. The sodium myristate was then acidified to form myristic acid, a fatty acid. The techniques of reflux, filtration, recrystallization, extraction, and melting point measurements were used. Briefly, crude trimyristin (fine white crystals; 1.969g) was extracted from nutmeg (brown powder) using diethyl ether under reflux and filtration, and the crude trimyristin was recrystallized in 95% ethanol. The purified trimyristin (fine beige crystals) underwent saponification (NaOH, 60% Ethanol) under reflux to form sodium myristate (beige in solution). The sodium myristate

Salt increased the density of the water while the mass of the saltwater solution was increased and the volume was unaffected. Now, three of my cups was holding water made of a mass of water only. However, the other three cups have added mass of the saltwater mixture. Generally, the chemical name of table salt is sodium chloride. It is an ionic solid made of positively charged sodium ions and negatively charged chloride ions, which form a strong crystalline structure due to the electrical charges between them.

Plain alginate solution was prepared by dissolving sodium alginate at different concentrations (1% w/w,1.5% w/w, 2% w/w) in distilled water stirring at 70ᵒC for 20 minutes and maintaining the pH at 2. The cross-linking solutions were produced by mixing Spirulina (20 % w/w, 25%w/w) and Calcium chloride (10% w/w, 15 %w/w) at various combinations of concentrations with distilled water. The pH of the solution was altered to 3 by adding citric acid buffer. The obtained solutions were drawn into a 20mL syringe and extruded through 22 gauge and 26 gauge needle into a sodium alginate solution while stirring using a magnetic stirrer. Later the formed hydrogen beads were washed several times using distilled water and later stored in 5% w/w Calcium chloride solution overnight.

A mix-up at a local distribution company has occurred and the company needs assistance in determining which bicarbonate contains potassium and which possess sodium. Due to the uniquely opposite reactant properties each element contains, it is essential to determine and be positive of which bicarbonate is which. Three possible chemical reactions occur during the thermal decomposition of either bicarbonate. We are to use the predicted product masses of those reactions to determine if it has potassium or sodium, along with a flame test.

Ionic compounds and covalent compounds have many similarities and differences. Ionic compounds are only formed with metals and non-metals. Covalent compounds are formed with non-metals. Ionic compounds have an overall neutral charge, but covalent compounds don’t have charge. Ionic compounds are formed when non-metals take electrons from metals. This gives both of them noble gas configuration. Covalent compounds are formed by two non-metals sharing their unpaired electrons, so they can mutually have noble gas configuration. What properties do compounds form when forming ionic and covalent bonds?

NaCl is short for Sodium Chloride. Its commonly known as Salt, It is known for being the saltiness in seawater. In the form of table salt it is commonly used as a condiment and food preservative.Large quantities of sodium chloride is used in many industrial processes, and it is a major source of sodium and chlorine compounds. A second major application of sodium chloride is de-icing of roadways in sub-freezing weather.

Table 2: Consists of color extract taken from a red cabbage for a natural indicator. The pH reading that was measured by using the pH meter and the result of the pH reading to determine whether the solution was acidic or basic.