A.0.088mg/L
B.8.8mg/L
C.0.01mg/L
D.0.88mg/L
E.10mg/L
[单选题]取1μl苯液体,用清洁空气稀释到100ml,此时苯的浓度是A.0.088mg/LB.0.88mg/LC.8.8mg/LD.10mg/LE.0.01mg
[单选题]取1μl苯液体,用清洁空气稀释到100ml,此时苯的浓度是A.0.088mg/LB.0.88mg/LC.8.8mg/LD.10mg/LE.0.01mg/L
[单选题]取1微升液态苯用空气稀释到100毫升,此时苯的浓度是多少()。A . 0.088mg/lB . 0.88mg/lC . 8.8mg/lD . 10mg/lE . 0.01mg/l
[单选题]取1.0μl苯液体用清洁空气稀释到100ml,此时苯的浓度是多少(苯的密度为0.88g/ml)A.0.088mg/LB.0.88mg/LC.8.8mg/LD.10mg/LE.0.01mg/L
[单选题]取0μl苯液体用清洁空气稀释到100ml,此时苯的浓度是多少(苯的密度为0.88g/ml)A.0.088mg/LB.0.88mg/LC.8.8mg/L
[单选题]取1μl苯液体用空气稀释到100μl,此时苯的浓度是多少A.0.088mg/LB.0.88mg/LC.8.8mg/LD.10mg/LE.0.01mg/
[单选题]CNAOH=5mol/L的NaOH溶液100ml,加水稀释至500ml,则稀释后溶液的浓度是()。A.4mol/LB.2mol/LC.5mol/LD.
[单选题]CNaoh=5mol/L的NaOH溶液100ml,加水稀释至500ml,则稀释后溶液的浓度是A.2mol/LB.1mol/LC.5mol/LD.4mo
[单选题]CNaoh=5mol/L的NaOH溶液100ml,加水稀释至500ml,则稀释后溶液的浓度是()。A.2mol/LB.1mol/LC.5mol/LD.
[单选题]C=5mol/L的NaOH溶液100ml,加水稀释至500ml,则稀释后溶液的浓度是A.2mol/LB.1mol/LC.5mol/LD.4mol/LE