Everest Base Camp

This chemical reaction involves neutralization, where an acid and base react to produce a neutral solution of salt and water. As this information is provided, the known concentration of NaOH(aq) is 0.25M. It is necessary to rinse out the burette with sodium hydroxide solution before starting titration, as the concentration of the base can be affected by the water used to clean the burette. At the same time, when cleaning the burette it may not have been washed thoroughly . By rinsing with…

A different type of Japanese bamboo had been studied by Phong et al. (2012). Moso bamboo was harvested and processed using several methods to obtain the fiber. In alkali extraction method, the bamboo was cut into thin slabs with length and thickness of 25 cm and 3 mm, respectively. The slabs were immersed in different concentration NaOH solution (1%, 2%, 3%) at 70 ⁰C for 10 h. This study showed that only 1% NaOH resulted in higher mechanical properties. The roller looser was then used to produce…

determining an unknown acid or base, anion and cation test were performed. These tests allowed for the components of the solutions to be identified, therefore, achieve the second goal. The pH was also used in to help find the identity of the unknown solutions and it was used to draw conclusions about the solutions. Dilutions were used to help understand the different behaviors of different concentrations. Household items were used to help apply basic theories about acids and bases such as pH.…

Lab Report Concerning Acid-Base Titrations The purpose of this experiment was to recognize the procedures for conducting acid-base titrations. Each acid-base titration used one solution to analyze another; it also involved the use of an indicator, which denoted the endpoint of the titration. The indicator used was phenolphthalein; it produced a pink hue when the titrations reached their endpoints – between pH 8 and pH 10. The endpoint was reached when the moles of the base being used became…

initial state. Bases are cations that have a hydroxide anion added into their molecular formulas. Bronsted defined bases as a proton acceptor.3 Just like acids, bases can be either strong or weak. Strong bases completely dissociate their OH- after a reaction and weak based only partially dissociate their OH-.3 Meaning strong bases cannot return to their initial state, yet weak bases can return to their initial state. Vinegar, common in…

moles of base in a mixture. Titration is used to determine the concentration of an unknown solution by using an already known solution. This process is important because it is commonly in the medical field. For example, pharmacists use titration in the creation of drugs. In addition, doctors also titration when determining the concentration necessary to give their patients of different medicines. Without titration, doctors and pharmacists would not be able to treat patients. Acids and bases can…

The aim of this experiment is to determine through calculations the concentration of acetic acid content within a common white vinegar. Apparatus / Materials Plastic Tray Electronic scales Sodium hydroxide Volumetric flask and lid Glass funnel Distilled water Pipette Volumetric pipette/s (5mL, 20mL) Bulb Conical flask Retort Stand Burette Burette clamp White Tile Method Place the plastic tray on the electronic scales and press tare to set the wither to zero; Weigh out 0.7993g of Sodium…

The following is a lesson sequence which modified the above experiment to promote inquiry based learning process. The aim of the experiment: Students use the change in the colour of red cabbage indicator to classify substances as either acid or base. Note: This activity may take more than one lessons. On the first lesson, students group, discuss and prepare their experiment. On the second lesson, students will have opportunities to carry out the investigation, then record, process, and evaluate…

Determining the Chemical Formula of Hydrated Copper (Ⅱ) Sulfate Using the Empirical Formula Introduction In this experiment, the molecular formula of hydrated Copper (Ⅱ) Sulfate will be determined. In order to determine the molecular formula, the empirical formula is needed which is the ratio of moles of one substance to another. In this experiment, it is the ratio of Copper (Ⅱ) Sulfate to water. CuSO₄・XH₂O The empirical formula can be determined if the moles of the compared substances…

ACID-BASE PROPERTIES OF SODIUM CHLORIDE, SODIUM FORMATE AND AMMONIUM CHLORIDE INTRODUCTION The objective of this experiment is to examine the definitive characteristics of acids and bases by investigating the characteristics of strong versus weak acids; more specifically, why these differences are important in the process of titrations. In this experiment, there are two titrations performed and measured the pH of one salt solution. This experiment includes a strong acid and strong base…