Calaculate the molarity of 30 mL of 0.5M H2SO4 diluted to 500mL.
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Solution
Volume of H2SO4 (V1) = 30 ml) Diluted volume of H2SO4 (V2) = 500 ml Number of moles present in 1000 mL of 0.5 M H2SO4 = 0.5 mol Initial molarity M1= 0.5 M We have to find M2 (molarity of 500 ml solution) M2V2 = M1V1 M2 ×500 = 0.5 × 30 M2 = 15/ 500 = 0.03 M