Chemistry Solver

The Chemistry Solver works numeric and conceptual chemistry problems. Stoichiometry with the balanced equation, molar masses, and the grams-to-moles-to-moles-to-grams path written out. Limiting reagent and percent yield. Empirical and molecular formulas. Gas laws and the ideal gas equation. Molarity, dilution, and titration. Thermochemistry with enthalpy and calorimetry. Equilibrium constants and ICE tables. pH, pKa, buffers. Redox and electrochemistry. Nomenclature and Lewis structures described in text. Each numeric answer carries units and significant figures. Conceptual questions, such as why a reaction is exothermic or how to name a compound, are answered with the rule and an example rather than a bare fact, and organic reaction questions get the mechanism outlined in steps.

Type the problem or photograph it: "how many grams of CO2 form when 10.0 g of C3H8 burns completely", "pH of 0.10 M acetic acid, Ka = 1.8e-5", "volume of 0.5 M NaOH to neutralize 25 mL of 0.2 M H2SO4". Write formulas with plain subscripts, H2SO4, and use -> for the reaction arrow. Include temperatures, pressures, and constants the problem gives. Set Answer form to decimal for numeric results. For a titration, give the volumes and concentrations and say which is the analyte. For a gas law problem, state the temperature scale used. For an empirical formula, give the percent composition or the masses, and for a molecular formula add the molar mass.

Output: the answer with units first. Then the balanced equation if one is needed, the molar masses used, the conversion chain with each factor labeled, and the arithmetic. ICE tables are drawn as tables. The working is shown so you can check it. For balancing only, the Chemical Equation Balancer is faster and shows the atom counts. For a unit conversion on its own, use the Unit Converter. For the physics of gases and thermodynamics, the Physics Solver also applies. A follow-up can rerun a stoichiometry problem from the other reactant, compute percent yield from an actual mass, or convert the final answer to different units. Significant figures follow the least precise given value, and the rule applied is stated.