What is the density of a substance with a mass of 0.0450 kg and a volume of 26.4

1704.54 kg/m³.

Explanation:

d = m/V.

where, m is the mass of the substance.

V is the volume of the substance.

m = 0.045 kg.

V = 26.4 mL/10⁶ = 2.64 x 10⁻⁵ m³.

∴ d = m/V = (0.045 kg)/(2.64 x 10⁻⁵ m³) = 1704.54 kg/m³.

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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