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Introduction The paired t-test in statistics is a tool that compares the data between two groups of samples and determines whether the mean difference between given measurements is zero or not. In statistics, two-sample t-tests are tools used to compare the means of two datasets. These tests are also known as Student’s t-tests, The results from the tests are used to evaluate the difference between the mean of two samples. The difference is not likely to be due to sampling error or by chance. Paired t-test is used to compare means of two datasets where we are made available with ... Read More
Introduction The applications of linear graphs are widely seen in day-to-day life. Graphs in the form of a straight line Ax+By+C=0 are called Linear graphs. In the standard form of line equation, A and B are coefficients, x and y are variables and C are a constant. In simple terms, a linear graph is a representation of the relationship between two or more variables. By plotting the variables of the equation or say the points x, y, z, etc., on a graph we get a straight line. The applications of linear graphs are widely seen in analysing and ... Read More
Introduction Applications of decimals in daily life are in the field of science , engineering, commerce and finance. A Decimal system is a numeral system containing integer numbers and non-integer numbers. The application of the decimal system is widely used in our day-to-day life. Decimal system provides values more accurately than the whole numbers. A Scottish Mathematician John Napier was the first one to introduce the decimal system. Denoting numbers in a decimal system is called Decimal notation.Sometimes the amount of money we get as income from various sources, the electricity bill, weight and height of both living ... Read More
Introduction Area of a triangle in coordinate geometry is used to find the area of a triangle using coordinates. A triangle is a three-sided polygon with three edges and three vertices in geometry. The area of a triangle is the amount of space covered by the triangle in a two-dimensional plane. A triangle is a closed two-dimensional form with three sides, three angles, and three vertices in geometry. Triangles are regarded as the polygon with the fewest sides. Triangles are one of those shapes that have a wide range of properties and applications in our world. A triangle is ... Read More
Introduction Baking soda is found as white crystalline powder. IUPAC (International Union of Pure and Applied Chemistry) designates baking soda as Sodium Hydrogen Carbonate. All steps of preparing baking soda and its important properties are included here, which is helpful in understanding the importance of Sodium Bicarbonate. What is baking soda? One of the most commonly used components in the household is baking soda. It is a crystalline compound tasted like alkaline and salty. Nahcolite is a type of Bicarbonate mineral found in nature. Baking soda is available in almost all mineral springs. This is a component of natural mineral ... Read More
Introduction Sodium Chloride provides the salinity of seawater and all extracellular fluid. Multi-cellular organisms possess a vital role to maintain the salinity of these areas. NaCl is collected from brine solution and by mining the deposits. Households and industries are two areas where the application of NaCl is found in a wide range. What is Sodium Chloride? One of the most important ionic compounds is known as Sodium Chloride (NaCl). This is a white crystalline solid widely used as flavour enhancer and preservative. The ratio of the two ions of NaCl is 1:1 (Na:Cl). This component is commonly known as ... Read More
Introduction Nitrogen was discovered by Daniel Rutherford in 1772. The gas was named azote. Nitre is a widely known nitrogenous compound that helps in the derivation of nitrogen. Nitrogen is symbolized with N and its atomic number is 7. The element has an atomic mass of 14.0067. What is Nitrogen? Nitrogen is a non-metallic element. It is located in group 15 in the periodic table. It is found in gaseous form in ordinary temperatures; however, the gas can be transformed into a liquid or solid state by reducing its temperature. The electronic configuration of nitrogen is $\mathrm{1s^{2}2s^{2}2p^{3}}$. The nitrogen molecule ... Read More
Introduction Phosphine is prepared in laboratory scale by using white phosphorus, Sodium Hydroxide followed by warming under inactive environment of the CO2. Phosphine is naturally found in human urine, blood, and saliva. It has several industrial applications as well as some health hazards facts. Information regarding Phosphine Phosphine is considered one of the toxic and flammable elements French chemist discovered Phosphine by heating phosphorous $\mathrm{(P_{4})}$ in the presence of aqueous solution of Potassium Carbonate. The experiment resulted in a colourless gas with fishy odour. Phosphine is considered a vital element in biochemical lifecycle. The chemical properties of the element are ... Read More
Introduction Principle of Spectroscopy is how the spectra can absorb UV light. The absorption of light refers to a vital chapter in chemistry. Absorption of ultraviolet radiation results in an excitation of the electrons available in the substances. About Spectrophotometer A spectrophotometer refers to a scientific instrument is primarily utilised for the analysis of electromagnetic radiation from the light to the sample and about its absorption wavelength. The absorption is measurement using the spectral components. The spectrophotometer is used to measure molecular spectroscopy. In physics, radiation is the emission or transmission of energy in the form of wavelength or particles. ... Read More
Introduction The shift in the state of equilibrium is noticed when, the system is disturbed. However, the experiment for the Shift in Equilibrium is conducted in the laboratory under controlled conditions. Le Chatelier's Principle states the concepts of shifting of equilibrium, is associated with equilibrium constant. The shift of equilibrium in the reaction is quite effective on the state of equilibrium. The shifting of reaction direction can be predicted accordingly. Le Chatelier's principle In a chemical reaction, the state of chemical equilibrium can be changed by making a change in the reaction conditions. The shift in the state of equilibrium ... Read More