We present Chandra observations of two radio-quiet QSOs , PG 2302+029 and PG 1254+047 .
PG2302+029 has an ultra high-velocity UV absorption system ( \sim - 56 , 000 km s ^ { -1 } ) , while PG 1254+047 is a Broad Absorption Line ( BAL ) QSO with detached troughs .
Both objects are X-ray weak , consistent with the known correlation between \alpha _ { ox } and the strength of the UV absorption lines .
The data suggest that there is evidence that both objects are intrinsically weak X-ray sources , in addition to being heavily X-ray absorbed .
The X-ray absorption column densities are N _ { H } > 10 ^ { 22 } cm ^ { -2 } for neutral gas and the intrinsic emission spectra have \alpha _ { ox } > 2 .
The data are fit best by including ionized ( rather than neutral ) absorbers , with column densities N _ { H } ^ { PG 2302 } > 2.98 \times 10 ^ { 22 } cm ^ { -2 } and N _ { H } ^ { PG 1254 } > 17.3 \times 10 ^ { 22 } cm ^ { -2 } .
The degrees of ionization are consistent with the UV lines , as are the total column densities if the strongest lines are saturated .