Avogadro constant

Fizzy drinks can cause some significant damage to your teeth and general heath. There are three main damaging factors: the sugar content, the acidic properties and the staining effect. The ph of a solution is defined as the hydrogen ion, H+, concentration of said solution (ThoughtCo, 2017). The ph scale ranges from 0-14. Ph 7 being a neutral ph, every ph above being classed as alkali and every ph before being classed as acidic. The mouth has a neutral ph that varies slightly from 6.5-7.5. This…

Questions 1. Why are three replicate titrations done for each sample? Three titrations are performed because an error may occur in one of the titrations and getting two extra titrations can help eliminate the wrong answer. It is also a great way to practice accuracy and precision. 2. What other household products could be analyzed by titrations (suggest three)? Some other household items that could be analyzed by titrations are fruit juice, Cola beverages and household ammonia. 3. Why is it…

Bisoprolol fumarate. These may indicate moderate kinetics of complexation between Vildagliptin with Bisoprolol fumarate. The value of stability constant for the drug-drug system at pH 1.0, 3.0 and 6.8 are 1.875 0.7778 and 1.2000 respectively. At pH 1.0 it is found that Vildagliptin form relatively stable complex with Bisoprolol fumarate (stability constant 1.875) is high in comparison to pH 3. From the IR report it…

Marwah Alabbad Qualitative aspects of Equilibrium Post lab 10/7/15 1. Tables in experience 1: A. Test tube 0.5M HNO3 (mL) Drops of Potassium thiocyanate Drops of Ferric nitrate Observation (color) A 0.5 mL 1 1 Light orange B 0.5 mL 1 9 Vibrant orange( medium) C 0.5 mL 5 5 Vibrant red D 0.5 mL 9 1 Dark shade of orange E 0.5 mL 9 9 Dark red B. Removing Fe3+ Test tube 0.5M HNO3 (mL) Drops of Potassium thiocyanate Drops of Ferric nitrate 1% NaOH (mL) Observation F 0.5 mL 5 5 - The color has…

Buffers are substances that help reduce the changes in concentrations of ions which are known as hydrogen ions and hydroxide ions. The composition of a buffer in an acidic aqueous solution is combined containing a weak acid and salt of conjugate base of the weak acid. (Importance of Buffers, 2013) The composition of a buffer in a basic aqueous solution is combined containing a weak base and a salt of conjugate acid of weak base. A buffer solution resists the changes in pH therefore resisting…

With this experiment intend to prove Salem Lakes ability to buffer chemicals used in the water treatment process versus that of the Yadkin River. Using a jar test machine, simulated the addition of an acid in the form of Al2SO4, and a base NaOH to the coagulation process. Salem Lake does show a preferred buffering at higher acid doses, though Yadkin River is more efficient at the low to mid-range dose. INTRODUCTION There is a distinct difference in the buffering capacity of Salem Lake versus…

P1V1=C=P2V2 C= a constant (same temperature and number of moles) 1678 Dr Panthot Recorded the salvaging of ships off the coast of Spain using diving bells. This is believed to be the first time in history of using underwater diving technology used for commerce. 1715 John Lethbridge Created a diving engine that could go down 20 metres and hold 30 minutes worth of oxygen. Had two arm holes to salvage ships. 1787 Jacques Charles Through experimentation found that volume at a pressure…

small amount of solution then adding more and more solution at a constant factor until the desired amount of different concentrations is acquired. Avogadro’s theory of solution is simply another extended way of his hypothesis to dilute solutions which is expressed as M1V1=M2V2 (Meldrum 48). The equation is the way to find the concentration of a substance, but the molarity of at least one and the volume of both are required. Avogadro came up with the value of a mole which is 6.022 x 10^23. This…

Introduction Alice in Quantumland is an allegory of quantum physics by Robert Gilmore. In this book Robert sends Alice to Quantumland, a whole new Wonderland, smaller than an atom, where each attraction demonstrates a different aspect. The book is about quantum physics and makes a story about it, making it more understandable. Key Idea 1 Bosons are particles that follow Bose-Einsteins statistics. It makes up one of the two classes of particles, the other is fermions. Fermions are electrons,…

statement was true. It was now Dalton’s quest to find it out. (“John Dalton”). Dalton eventually came to an agreement with Democritus. He said that gas was made of atoms and what atoms were made of. A few years afterward, a man named Amedeo Avogadro came back and changed some of Dalton’s errors. However, his changes were rejected for many years later. This is mainly because it mainly disagreed with Dalton’s work(“John Dalton”). Later on in his life, Dalton came up with 5…