In Ancient Greece, abacus appeared in the 5th century BC. Presumably, the first Abacus appeared in ancient Babylon about 3 thousand years BC. Abacus was a grooved board with movable counting labels (stones or bones). Calculate masses of reactants and products from balanced equations. Below are two examples of using the input field.
This is the input field where you input your operations for the scientific calculator to calculate. As chemistry seems very frightening & illogical, but it is very interesting & useful. The ancestor of the modern calculator is Abacus, which means "board" in Latin. Calculate the percentage of an element from a given formula. On our Online Scientific Calculator, you will find a blank field with a blinking cursor. You can see the current math calculations in a smaller display that is below the main display of the calculator.Ĭalculations order for this given example is the following: 2+2=4, subtotal - 4. Why do we get 8 when trying to calculate 2+2x2 with a calculator?Ĭalculator performs mathematical operations in accordance with the order they are entered. įrequently asked questions about the calculator To enter (divide) - key on the numeric keypad on the right or a combination of keys and. To enter (multiplication) - key on the numeric keypad on the right or a combination of keys and. To enter - key at the top or key on the right. To enter - key at the top or key on the numeric keypad on the right. To erase the last character - (arrow keys).
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To use free online calculator you can use both ordinary numeric buttons at the top of a keyboard and numeric buttons on the right of a keyboard. The result is equal to 625.ĭeduction percentage of the number: 500 25. The result is equal to 5(%).Īdding percentage to the number: 500 25. The result is equal to 125.Ĭalculating what percent is one number of another number: 25 500. The result is equal to 81.Ĭalculation of percentage of the number of: 500 25. This calculator is an approximation for calculating the hydrogen peroxide in a condensed. This calculator is for calculating the pH of a solution of poly-acrylic acid. resets the calculator without resetting the memory.Įxamples of calculations on the online calculatorĬalculate the square root of 529: 529. This calculator is used to calculate the pH obtained when dilutions a strong acids such as sulphuric acid, nitric acid, hydrochloric acid etc in an aqueous buffered solution. reset the calculator and reset the memory
addition, - subtraction, - multiplication, - division remove the last character on the display Instructions for using the online calculator Keys function Now, you can easily solve basic to advance chemistry equation problems by.
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We don’t know how to learn about chemistry without effort, but we can assist you to solve the chemistry problems by providing the free chemistry calculators. How to Choose the Right Scientific Calculator When it comes to buying. As chemistry seems very frightening & illogical, but it is very interesting & useful. Detailed instructions for using the calculator, see below. Scientific calculators are also used for some astronomy, chemistry, and physics problems. You can make not only simple math calculations and calculation of interest on the loan and bank lending rates, the calculation of the cost of works and utilities.Ĭommands for the online calculator you can enter not only the mouse, but with a digital computer keyboard. Use for work, school or personal calculations. Use the formula of Activation Energy to know a reaction’s activation energy in J/mol instead of Btu/lb mol.Large, easy and convenient online calculator The calculator is quite durable comes with a gloss black finish and silver accents. The calculator has seven modes that include normal, stat, drill, complex, matrix, list and equation modes. Whether you need to calculate the pKa of a solution or just a pH, use WebQC pH calculator to find out. Which is the best website to choose Chemistry Calculators for various concepts is a genuine website where you can find Chemistry Calculators for various concepts free of cost. The Sharp calculator is one of the affordable and premium quality calculator available in the market. This online tool of Chemistry calculator will help you to solve a wide range of equations and problems related to Acid-Base Reactions, Buffers, Catalysis, Chemical Equilibrium, Empirical and Molecular Formulas, Electrochemistry, Electrolysis, Electron Quantum Numbers, Gas Laws (Ideal, Dalton’s and Graham’s Law), Ionic/Covalent Bonds, Ions and Molecules, Kinetics, Mass Spectrometry, Nuclear decay, Oxidation-Reduction Reactions, Percentage Composition, Significant Figures and Solution Concentration. How a matter is formed and what happens when it reacts with another matter or substance. Chemistry is the Science of Matter where you learn about a matter’s composition and properties.
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