Boltzmann 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…

electromagnetic waves. The waves hold energy away from releasing object. For a normal temperature, the radiation is in the infrared region of the electromagnetic spectrum. The relationship ,conducting the net radiation from a hot object is called,” Stefan Boltzmann Law.”In 1879, it empirically obtained by Josef Stefan. In 1884, it was obtained theoretically…

960Wm^-2. Step 4: The calculated mean temperature of the Earth is 15°C which is 288K. When we solve for radioactive flux by using the ‘sigma T to the fourth’ rule (radioactive flux = AσT4) where A = 5.111859325x1011m^2, K = 288K and σ = the Stefan-Boltzmann proportionality continuous which is about 5.670373(21)×10^−8 W m^−2 K^−4, then the resultant radioactive flux concludes to be equaling 390Wm-2 which shows a change of 390Wm^-2 - 240Wm^-2 = 150Wm^-2. Step…

The reaction between Propanone and iodine under acidic condition Aims To find the order of reaction with respect to propanone, iodine and sulfuric acid, thus proposing a rate equation. Find rate constant at various temperature and with the use of the Arrhenius equation, find the activation enthalpy of the reaction. General Method {For step by step guide of the experiment see preparation page} By using known concentration of aqueous iodine solution (0.000 moldm-3, 0.005 mol dm-3, 0.015…

Heat conduction mechanism represents the energy loss at the particle surface due to the collisions with the surrounding gas molecules. There is no simple theory to explain the cooling mechanism of the particles. During the laser pulse, the particle achieves the peak temperature and emit thermal signal. After the laser pulse duration, the particle starts to cool down. The cooling of the particles is characterized by a decay function. The decay of LII signal provides information about the primary…