Math Problem Statement

suatu senyawa organik dengan mr=180 tersusun dari 40 karbon, 6,6% hidrogen dan sisanya oksigen, jika ar c=12, ar h=1 dan ar o=16, tentukan rumus molekulnya

Solution

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Math Problem Analysis

Mathematical Concepts

Stoichiometry
Mole Concept
Empirical and Molecular Formulas

Formulas

Massa unsur = (Persentase massa unsur / 100) × Massa senyawa
Jumlah mol = Massa unsur / Ar unsur
Rumus empiris = Perbandingan mol relatif
Rumus molekul = (MR senyawa / Massa rumus empiris) × Rumus empiris

Theorems

Law of Conservation of Mass
Mole Concept in Chemistry

Suitable Grade Level

Grades 10-12