(e) In addition to the number of moles of Cuso, calculated in part (b). what other quantity must be measured in order to calculate the mass percentage of CuSO4 in the impure sample of CuSO4?

in the given question, the partial pressure is calculated by using the ideal gas equation, that is, pv = nrt

here, p is pressure, v is volume = 25 l, n is number of moles = 0.0104 moles, r is gas constant = -0.0821 l.atm / mol.k

t is temperature = 273 k

p = nrt / v

p = (0.0104 mol × 0.0821 l.atm / mol.k × 273 k) / 25 l

= 0.0093 atm

120,630,890

step-by-step explanation:

110+10=120,620+10=630,880+10=890

they are made of gases.

they have a spherical shape.

they make energy through fusion.