What is the volume of a sample of iron that has a mass of 275.1 g? The density of iron is 7.86 g/cm'. Express the answer with the correct number
of significant figures. *
A. 0.0286 cm
B. 3090 cm
C. 35.0 cm
D. 35 cm

Nitrogen dioxide decomposes according to the reaction 2 no2(g) ⇌ 2 no(g) + o2(g) where kp = 4.48 × 10−13 at a certain temperature. if 0.70 atm of no2 is added to a container and allowed to come to equilibrium, what are the equilibrium partial pressures of no(g) and o2(g)