13.59ml
用质量分数为98%密度为1.84g/m³的浓硫酸体积为0.5mol/L×0.5L=v×1.84g/m³×98%÷98g/mol解得v=13.6mL所需浓硫酸体积为 13.6mL.理解请及时采纳!!祝你进步!