Stoichiometry Calculator: Simple and Effective

Why This Tool Rocks

This stoichiometry calculator solves grams to grams questions with plain steps. Enter a balanced equation. Pick a compound and get the mass you need. It reads your equation and applies mole ratios from the coefficients. You see each step with the math and the final answer. Use it for class or lab prep or quick checks at your desk. Every reaction setup can feel unique, so clear guidance helps.

How It Works

How to use this tool step by step.

Step 1: Enter Your Equation

Type a balanced chemical equation in the field. Use the equal sign to split reactants and products. Place plus signs between compounds on each side. Write expanded formulas without parentheses or hydration dots. Use correct element case like Na and Cl and H. Use whole number coefficients only.

• 2H2 + O2 = 2H2O Water formation
• CH4 + 2O2 = CO2 + 2H2O Methane combustion
• 2Al + 3Cl2 = 2AlCl3 Aluminum chloride formation
• N2 + 3H2 = 2NH3 Ammonia synthesis

Step 2: Get Instant Feedback

Click Parse Equation to read the equation. You will see your equation shown with an arrow between sides. A table lists each compound with its role and molar mass. If the format needs work, a short message will guide you. Use this view to confirm coefficients and compounds before you calculate.

Step 3: Perform Calculations

Pick the known compound from the dropdown. Enter its mass in grams in the amount box. Choose the target compound from the second dropdown. Click Calculate to run the stoichiometry. The tool converts grams to moles then uses the ratio then converts back. You will see each step and a final mass in grams.

Inputs guide

• Equation field holds your balanced equation with equal sign and plus signs.
• Parse Equation button reads the equation and shows compound details.
• Known Compound menu selects the reactant or product you know.
• Amount grams box takes a positive number for mass.
• Target Compound menu selects the compound you want to find.
• Calculate button runs the math and shows results.

Tool Benefits at a Glance

Ease of Use

You move from equation to answer in a few clicks. The steps cut extra conversions and side work.

• Skip manual molar mass lookups.
• Work in grams from start to finish.
• See the ratio that links your compounds.

Instant Clarity

Results show the math in plain steps. You see moles then ratios then grams. The Answer line states the grams produced or required. Use this to plan reagents or check homework fast. If you pick a product as target the mass is produced. If you pick a reactant as target the mass is required.

A Quick Word on the Interface

Read these notes for reliable results.

• Balance the equation before you click Parse Equation.
• Use whole number coefficients only.
• Separate sides with the equal sign.
• Place plus signs between compounds.
• Write expanded formulas without parentheses or hydration dots.
• Skip charges and state symbols.
• Use proper case for element symbols.
• Enter mass in grams, results show grams.
• The method assumes complete reaction and one hundred percent yield.
• Supported elements range from hydrogen to uranium.
• Atomic weights come from a built in table, values can vary by source.
• For limiting reagent checks, run two cases and compare.
• Save your equation text for repeat runs.

Final Thoughts

This stoichiometry calculator keeps your work clear and fast. Use it to convert grams between reactants and products with ease. We aim for utmost clarity from input to answer. Common use cases include these examples.

• Given grams of H2, find grams of H2O in 2H2 + O2 = 2H2O.
• Given grams of CH4, find oxygen needed for CH4 + 2O2 = CO2 + 2H2O.
• Given grams of Al, find AlCl3 from 2Al + 3Cl2 = 2AlCl3.
• Given grams of N2, find NH3 for N2 + 3H2 = 2NH3.
• Compare two targets by switching the dropdown and running both.