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## Stoichiometry Calculations

## Syntax Guide

• To include an electron into a chemical equation, use {-}, e.g. Fe{+3}+{-}=Fe.

• Do not enter the state of compounds such as solids (s), liquids (l) or gases (g).

## Using Stoichiometry Calculator

A single electron can be denoted as e – (e<sup>-</sup>) or e⁻ (with ‘tiny’ minus).

## Output format

• Normal – The balanced equation is represented according to the above syntax guide.

## Error notifications

## Example of Stoichiometry Calculations

Consider the combustion of methyl mercaptan (CH 4 S or CH 3 SH) that produces sulfur dioxide:

With the help of our stoichiometry calculator, we can easily get the result in no time.

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Chemistry Calculators ▶ Stoichiometry Calculator

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## Stoichiometry Calculator

Add this calculator to your site and lets users to perform easy calculations.

How easy was it to use our calculator? Did you face any problem, tell us!

## What Is Stoichiometry?

## Stoichiometric Coefficients:

## Types of Stoichiometry:

## Stoichiometry Example Problems:

Let’s resolve an example to clarify the concept of stoichiometry:

Carrying out stoichiometry conversion as below:

The balanced chemical stoichiometry equations for the water formation reaction is as follows:

$$ 2H_{2} + O_{2} → 2H_{2}O $$

For calculations and steps, tap the atomic mass calculator .

The above information can also be displayed in the following stoichiometry table:

Change the moles of the elements of the reaction equation.

Now go for determining the actual mass of the compounds:

1 gram of hydrogen reacts with 32/4 = 8 grams of the oxygen

Mass of the water produced = 36/4 = 9 grams

## How Solution Stoichiometry Calculator Works?

- What you need to do here is to write the chemical reaction of your choice in the designated field. Also, you can load the pre-saved example reaction
- After you are done with it, it’s time to hot the calculate button

The free stoichiometric equation solver determines the following results:

## References:

From the source of Lumen Learning: Reaction Stoichiometry, Moles to Moles , Grams to Moles

## Reaction Stoichiometry Calculator

Stoichiometry calculator for android phones and tablets

⚐ Stoichoimetry Plus 3.0 is available ⚐

Calculation Type: ------Select One------- Reactant Amount Given Product Amount Given

How to use the calculator Show Me

2) Select a Calculation Type. An input table will be created.

3) Input amount available. Check 'sufficient' box if amount of a reactant is unknown.

4) Click the 'Calculate' button. Calculation results will appear as below.

Tip: use formula (O2)0.21*(N2)0.79 for air

## Stoichiometry Calculator + Online Solver With Free Steps

What is a stoichiometry calculator.

It also provides the chemical structures of reactants and products.

## How To Use Stoichiometry Calculator

You can use the Stoichiometry Calculator by following the steps mentioned here.

## Input Interpretation

\[ H_{3} P O_{4} \ + \ Na OH \ \longrightarrow \ H_{2} O \ + \ Na_{3} P O_{4} \]

The user will find the input interpretation according to his/her entered reactants and products.

## Balanced Equation

The balanced equation obtained from the chemical equation set by default by the calculator is:

\[ H_{3} P O_{4} \ + \ 3 Na OH \ \longrightarrow \ 3 H_{2} O \ + \ Na_{3} P O_{4} \]

## Word Equation

The reactants and products, set by default by the calculator, show the following word equation:

Phosphoric acid + Sodium hydroxide $\longrightarrow$ Water + Trisodium Phosphate

## Equilibrium Constant

$M_{P_{2}}$ is the number of moles of the second product P2 in the balanced equation.

$M_{R_{1}}$ is the number of moles of the first reactant R1 balanced in the input equation.

$M_{R_{2}}$ is the number of moles of the second reactant R2 balanced in the equation.

The reactants and products, set by default by the calculator, gives the balanced equation as:

\[ H_{3} P O_{4} + 3 Na OH \longrightarrow 3 H_{2} O + Na_{3} P O_{4} \]

The equilibrium constant Kc is obtained from the balanced equation as:

\[ K_c = \frac{ {[ H_{2} O ]}^{3} \ [ Na_{3} P O_{4} ] }{ [ H_{3} P O_{4} ] \ { [Na OH ] }^{3} } \]

## Rate of Reaction

The rate of reaction for the default set of reactants and products by the calculator is:

The calculator obtains this equation by assuming the volume constant.

## Chemical Names and Formulas

## Substance Properties

The molar mass of a substance is the mass of one mole of that substance.

## Melting Point

## Boiling Point

## Solubility in Water

Solubility in water is defined as how much a substance dissolves in water .

## Surface Tension

The surface tension of sodium hydroxide and water is 0.07435 N/m and 0.07435 N/m respectively.

## Dynamic Viscosity

The odor of a substance is the smell coming from the substance .

## Entropy and Enthalpy

## Solved Examples

Following are some solved examples through the Stoichiometry Calculator.

The user enters the equation in the calculator’s input window as follows:

\[ Al \ + \ HCl \ \longrightarrow \ Al Cl_{3} \ + \ H_{2} \]

The calculator shows the above equation in the input interpretation.

In the next window, it shows the above equation in balanced form as follows:

\[ 2 Al \ + \ 6 HCl \ \longrightarrow \ 2 Al Cl_{3} \ + \ 3 H_{2} \]

The calculator also shows the structures of the substances in the chemical equation.

The structure of $AlCl_3$ is given in figure 1 as follows:

Structure of $H_2$ is given as:

The calculator gives the word equation for the input interpretation equation as follows:

Aluminum + Hydrogen Chloride $\longrightarrow$ Aluminum Chloride + Hydrogen

The calculator also displays the reaction thermodynamics for this equation.

The enthalpy of the above chemical reaction is given as follows:

The negative sign of enthalpy indicates an exothermic reaction.

The entropy of the chemical reaction is calculated as follows:

The negative sign of entropy of the chemical reaction indicates an exo-entropic reaction.

The equilibrium constant for the balanced equation is given as follows:

\[ K_c = \frac{ {[ Al Cl_{3} ]}^{2} \ {[ H_{2}]}^{3} }{ {[ Al ]}^{2} \ { [HCl] }^{6} } \]

The rate of reaction given by the calculator is,

The calculator also provides the chemical names and formulas for the reactants and products.

\[ N H_{3} \ + \ O_{2} \ \longrightarrow \ H_{2} O \ + \ NO \]

The calculator balances the equation and shows the balanced equation as follows:

\[ 4 N H_{3} \ + \ 5 O_{2} \ \longrightarrow \ 6 H_{2} O \ + \ 4 NO \]

The structure of $ N H_{3} $ is shown in figure 2 as follows:

The structure of $O_{2}$ is given as follows:

The structure for $H_{2} O$ is given in figure 3 as follows:

The structure of NO is given as follows:

The calculator also provides the word equation for the chemical equation as follows:

Ammonia + Oxygen $\longrightarrow$ Water + Nitric Oxide

The Reaction thermodynamics for this equation is also displayed by the calculator.

The enthalpy of the chemical reaction is given as follows:

\[ \Delta {H_{rxn}}^{0} \ = \ -1350 \ kJ/mol \ – \ ( – \ 183.6 \ kJ/mol ) \ = \ – \ 1166 \ kJ/mol \]

The reaction is exothermic as enthalpy is negative.

The Gibbs free energy is also calculated by the calculator as follows:

The value of Gibbs free energy indicates an exergonic reaction.

The negative sign of entropy indicates an exo-entropic chemical reaction.

The calculator gives the equilibrium constant for the balanced equation as follows:

\[ K_c = \frac{ {[ H_{2} O]}^{6} \ {[ NO ]}^{4} }{ {[ N H_{3} ]}^{4} \ { [ O_{2} ] }^{5} } \]

The rate of reaction for this equation is given by the calculator as follows:

All images are created using GeoGebra.

## Geometric Sequence Calculator < Math Calculators List > Complex Number Division Calculator

## Reaction Stoichiometry Calculator

- Use the symbol = to separate the reactants from the products.
- It is not allowed to specify the state of the compounds, (s) for solid, (g) for gaseous or (l) for liquid. If the state of the compounds is specified in the equation that you are going to enter, eliminate them from the equation. Example: To enter the equation 2Na (s) + Cl 2 (g) ⟶ 2NaCl (s) , we ignore (s) and (g), writing 2Na+Cl2 = 2NaCl.
- Write the symbols of the elements using capital letters for the first letter. For example for Manganese write Mn.
- Parentheses ( ), square brackets [ ], and braces { } are allowed.
- To introduce an ion you must write its charge between braces after the compound, {+3} or {3+}. Example: H{+} + CO3{2-} = H2O + CO2
- To enter hydrates you must separate the compound from the water molecule using the symbol · or an asterisk *. Example: ZnSO4·7H2O
- To introduce electrons use {-}. Example: Cl2+2{-}=2Cl{-}

## What is stoichiometry?

## How to do stoichiometry

- Write the chemical equation as it appears in the proposed problem or exercise.
- If necessary, balance the chemical equation. From the balanced equation we can know the number of molecules of a product that can be obtained from a certain number of molecules of the reactants. Think of the stoichiometric coefficient as the number of moles that react or are formed. For example, if we have the balanced reaction:

## The importance of stoichiometry

This calculator will perform reaction stoichiometry calculations.

## Instructions

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 character. Examples: Fe, Au, Co, Br, C, O, N, F.
- Ionic charges are not yet supported and will be ignored.
- Replace immutable groups in compounds to avoid ambiguity. For example, C6H5C2H5 + O2 = C6H5OH + CO2 + H2O will not be balanced, but XC2H5 + O2 = XOH + CO2 + H2O will.
- Compound states [like (s) (aq) or (g)] are not required.
- You can use parenthesis () or brackets [].
- B2O3 + Mg = MgO + B
- N + O = NO2
- Na2SO4 + C = Na2S + CO
- Al(NO3)3 + H2SO4 = Al2(SO4)3 + HNO3
- Fe + S8 = FeS
- Na2HPO4 + HCl = NaH2PO4 + NaCl
- CaSiO3 + HF = CaF2 + SiF4 + H2O
- NaHCO3 + K2Cr2O7 = KHCO3 + Na2Cr2O7
- KCH3CO2 = KCH3CO2
- C4H6O3 + C7H6O3 = C9H8O4 + C2H4O2
- MgCl2 + Na2CO3 = MgCO3 + NaCl
- CuCl2 + Na3PO4 = Cu3(PO4)2 + NaCl

## How To Perform Stochiometric Calculations

## Balance the Equation

## Determine the Molar Mass of Each Reactant and Product

You now have all the information needed to start doing stoichiometric calculations.

## Moles and Grams of the Known or Needed Substance

## Calculate Amount of Needed Substances

Finally, to calculate the amount of the other substances:

- Divide the amount of moles you have of the known substance by the coefficient of the known substance. For example divide 1.05 moles of MgCl2 by 1 (coefficient of MgCl2 in the balanced equation) = 1.05.
- NaOH = 1.05 * 2 = 2.10 moles
- Mg(OH)2 = 1.05 * 1 = 1.05 moles
- NaCl = 1.05 * 2 = 2.10 moles

- NaOH = 2.10 mol * 39.997 g/mol = 83.9937g
- Mg(OH)2 = 1.05 mol * 58.319 g/mol = 61.23495g
- NaCl = 2.10 mol * 58.442 g/mol = 122.7282g

## Use an Online Stoichiometry Calculator

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## Stoichiometry Calculator

- In the chemical reactions, the calculation of reactants and products is called stoichiometry.
- It is founded on the law of conservation of mass, where the total mass of the product is equal tobthe total mass of the reactants.
- The amount of the product can be calculated by the known amount of seperate reactants.

## Steps to Use Stoichiometry Calculator

Read The procedure to use the online Stoichiometry Calculator is as follows below:

☛ Step 1: Enter the Value in the respective input field

☛ Step 1: Click the “ Submit ” Button to get the optimal solution

☛ Step 1: Finally, Output will be displayed in the new window

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## Stoichiometry Calculator

Stay tuned, while we are in the process of adding the Stoichiometry Calculator.

## How to Use Stoichiometry Calculator?

## Why do We use Stoichiometry?

- Use uppercase for the first letter and lowercase for the second letter.
- There must be one space before and after + and -> signs
- You can use parenthesis() or brackets []

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Again, consider the balanced equation:

The only unit left uncancelled is grams O 2 , the unit of oxygen. The answer is 1200 g O 2 .

All of these steps can be combined into a single equation as follows.

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## Calculate mass of phosphine PH 3 evolving when 12g of calcium phosphide Ca 3 P 2 is added to 20g of water.

Program does its part of the work and displays balanced equation and calculated molar masses.

At this moment we can take a look at the reaction summary - or even print it, just in case:

## Stoichiometry calculator

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## IMAGES

## VIDEO

## COMMENTS

Stoichiometry is important because it explains the relationships of reactants and products in chemical reactions. Stoichiometry means “element measurement” in Greek and is also known as Mass Relations.

Even if you don’t have a physical calculator at home, there are plenty of resources available online. Here are some of the best online calculators available for a variety of uses, whether it be for math class or business.

Sometimes you just need a little extra help doing the math. If you are stuck when it comes to calculating the tip, finding the solution to a college math problem, or figuring out how much stain to buy for the deck, look for a calculator onl...

This online Stoichiometry Calculator finds the stoichiometric coefficients to balance a given chemical equation and computes amounts of the reactants and

The free stoichiometric equation solver determines the following results: Determines the amount of reactant as well as the products in terms of moles and grams

A comprehensive reaction stoichiometry calculator that can solve problems of all situations. It automatically balances equations and finds limiting reagents

The Stoichiometry Calculator is used to balance the chemical equations on both sides. It takes the chemical equation as input and outputs a balanced equation

The Reaction Stoichiometry Calculator allows you to balance a chemical equation and establish the relationship between the amounts of reactants and products

Calculate Amount of Needed Substances · Divide the amount of moles you have of the known substance by the coefficient of the known substance. · Multiply the

In the chemical reactions, the calculation of reactants and products is called stoichiometry. It is founded on the law of conservation of mass, where the total

Stoichiometry Calculator is a free online tool that displays a balanced equation for the given chemical equation. BYJU'S online stoichiometry calculator

Get the free "Stoichiometry Calculator" widget for your website, blog, Wordpress, Blogger, or iGoogle. Find more Chemistry widgets in

6. Pick up the calculator and do the math. ... 2. Write the mass information given in the problem.

This is a classic stoichiometry problem - limiting reagent question.