A gas occupies 4.31 L at a pressure of 0.755 atm. Determine the volume occupied by the gas if the pressure is increased to 1 710 mm Hg. a. 6.75 L
b. 12.84 L
c. 1.45 L
d. 0.39 L

Phosphoric acid is a triprotic acid ( =6.9×10−3 , =6.2×10−8 , and =4.8×10−13 ). to find the ph of a buffer composed of h2po−4(aq) and hpo2−4(aq) , which p value should be used in the henderson–hasselbalch equation? p k a1 = 2.16 p k a2 = 7.21 p k a3 = 12.32 calculate the ph of a buffer solution obtained by dissolving 18.0 18.0 g of kh2po4(s) kh 2 po 4 ( s ) and 33.0 33.0 g of na2hpo4(s) na 2 hpo 4 ( s ) in water and then diluting to 1.00 l.

Draw the aromatic compound toluene (methylbenzene). show all hydrogen atoms, including those on the ring.

Total the mass on the syringe. record it in the correct row of the data table. kg done click and drag weights to change the pressure. click the syringe to zoom in and see the volume. intro