Gravitational constant

Graph 4 demonstrates the correlation between the transmittance and concentration levels of KMnO4, in how as the levels of concentration increase, the transmittance decreases. The experiment during week 2 was very similar to week 1 except we used potassium phosphate instead of potassium permanganate. Table 3 demonstrates the effect of wavelength on T% and absorbance. The same equation used for Table 2 was used in Table 3 in order, to calculate the absorbance. The highest absorbance level was…

It is essential for pharmacists to be able to predict the theoretical rate kinetics of pharmaceutical products in order to determine its shelf life. As the shelf life is defined by (t90), which is the availability of greater or equal to 90% of the drug, it is important to discover the rate of degradation of a drug to ensure that the patients receive an adequate dose of the drug. In this experiment, the stability of the active ingredient of Aspro Clear is investigated to identify the rate of…

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…

John Sinclair Dr. Philip Carlson General Physics I 11/28/2015 Physics Worldview Paper 6.67408 × 10-11 m3 kg-1 s-2. This number is the universal gravitational constant. It is an empirical physical constant denoted by the capitol letter G. The gravitational constant was first used in Newton’s law of universal gravitation [1] which states that any two bodies attract one another with a force which is directly proportional to the product of the two masses, and inversely proportional to the square…

The universe is filled with a vast amount of galaxies of various shapes and sizes. A galaxy is defined as a system of millions or billions of stars with gas and dust held together by gravitational attraction. There are several types of galaxy types: elliptical, spiral and irregular. Spiral galaxies are galaxies which usually have a large mass in the middle with arms branching off of it containing stars and star systems (Swinburne University of Technology, n.d.). All of the objects orbiting the…