molecular-weight-calculator
Molecular Weight Calculator (Fully Fixed) Molecular Weight Calculator Now fully fixed for complex formulas (including nested parentheses) Enter Chemical Formula Enter a formula to calculate Important: Use standard chemical notation: • Element symbols start with uppercase letter (e.g., Na not na, Cl not cl) • Second letter lowercase if present (e.g., Co for cobalt, not CO) • Supports complex/nested formulas and hydrates with · (dot) • Examples that now work perfectly: - CO2 (carbon dioxide) - NaOH - CuSO4·5H2O (copper sulfate pentahydrate) - Al2(SO4)3 - (NH4)2Fe(SO4)2·6H2O (Mohr's salt)