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Free Chemistry calculator - Calculate chemical reactions and chemical properties step-by-step
The AFR calculator gives you the rate between the mass of air and the mass of fuel of a complete combustion process. Our atom economy calculator can help you estimate the quantity of waste in your chemical reactions. This Avogadro's number calculator will help you find the number of molecules in a mole.
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To perform a stoichiometric calculation, enter an equation of a chemical reaction and press the Start button. The reactants and products, along with their coefficients will appear above. Enter any known value. The remaining values will automatically be calculated. Use uppercase for the first character in the element and lowercase for the second ...
- Using Inspection/Trial and Error
- Using Linear Systems of Equations
- Combining Inspection + Linear Systems
- Frequently Asked Questions About Balancing Chemical Equations
Example #1 (Trivial): CaCO3 + HCl
1. Iron + Hydrogen Chloride = Ferrous Chloride + Hydrogen Gas: Fe + HCl → FeCl2 + H2 2. Zinc + Hydrogen Chloride = Zinc Chloride + Hydrogen Gas: Zn + HCl → ZnCl2 + H2 1. CaO + H2O → Ca(OH)2
Example #2 (Simple): Na + H2O
1. Combustion of Methane and Oxygen: CH4 + O2 = CO2 + H2O
Practice Balancing Chemical Equations Using Inspection
1. Aluminium + Sodium Hydroxide + Water = Sodium Aluminate + Hydrogen Gas: Al + NaOH + H2O = NaAlO2 + H2 2. Zinc + Hydrogen Chloride = Zinc Chloride + H2 Gas: Zn + HCl → ZnCl2 + H2
Example: Balance KMnO4 + HCl Using The Algebraic Method
1. a = ¹/₄ f 2. b = 2 f 3. c = ¹/₄ f 4. d = ¹/₄ f 5. e = ⁵/₈ f 6. f∈ R 1. a= 2 2. b= 16 3. c= 2 4. d= 2 5. e= 5 6. f= 8
Practice Balancing Chemical Equations Using Linear Systems
1. K4Fe(CN)6 + H2SO4 + H2O = K2SO4 + FeSO4 + (NH4)2SO4 + CO
Identify elements which occur in one compound on each side. This is very common (e.g. K, Mn, O and H in the prior example).Start with the one among those which has a big index (this will help to keep working with integers), and assign a variable, such as a. In the prior example, O has the largest index (4)Next, start determining other coefficients in terms of a: H2O has to be 4a (because of O), MnCl2 has to be 1a (because of Mn), and KCl has to be 1a (because of K).This eliminates the first three eq...One can continue by writing the equations now (and having a simpler problem to solve) or, in this particular case you could notice that to balance the Hydrogens between HCl and 4a H2O, you need 8a...How do you write chemical equations?Why do chemical equations need to be balanced?How do you balance an equation with fractions?How do you identify the type of reaction based on the chemical equation?Its molecular formula is \ceC6H12O6 \ce C 6 H 12 O 6. The structures of both molecules are shown in the figure below. They are very different compounds, yet both have the same empirical formula of \ceCH2O \ce C H 2 O. Figure 10.13.2 10.13. 2: Acetic acid (left) has a molecular formula of \ceC2H4O2 \ce C 2 H 4 O 2, while glucose (right) has a ...
This online Chemical Reaction Calculator checks whether a given chemical equation is balanced and finds the appropriate stoichiometric coefficients. It also calculates the amounts of reactants and reaction products in both moles and grams. In addition, the amount of unreacted reagents and the limiting reactant are determined.
Jul 21, 2022 · The "non-whole number" empirical formula of the compound is Fe1O1.5 Fe 1 O 1.5. Multiply each of the moles by the smallest whole number that will convert each into a whole number. Fe:O = 2 (1:1.5) = 2:3. Since the moles of O O is still not a whole number, both moles can be multiplied by 2, while rounding to a whole number.
