Purity → Concentration Converter
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Substance
NaOH
CaCO₃
NaCl
H₂SO₄
KOH
Sample mass (g)
5.00
Purity (%)
96
Volume (mL)
250
96%
4%
Pure:
4.80 g
Impurities:
0.20 g
1
Apply Purity
m(pure) = 5.00 × (96 ÷ 100) = 4.80 g
2
Convert to Moles
n = 4.80 ÷ 39.997 = 0.1200 mol
3
Calculate Concentration
c = 0.1200 ÷ 0.250 = 0.480 mol L⁻¹
Final Concentration
0.480 mol L⁻¹
Tip: Adjust the sliders to see how lower purity reduces concentration even when sample mass stays the same. Press R to reset.