Hvap, Tvap, Mr are constants
Hvap = 443.38 kJ/kg = 196417.34 J/mol
Tvap = -85.1 °C
Mr = 36.5 g/mol
n = 1.80 mol
ΔS = n*Hvap/Tvap
ΔS = 1.80 * 196417.34 / (273-85.1)
ΔS = 1881.59 J/K = 1.882 kJ/K
Answer:
Saturated hydrocarbons are the compounds containing only single covalent bonds. These are also known as alkanes. Unsaturated hydrocarbons are the straight chain compounds containing double or triple covalent bonds. These compounds are less reactive. . An unsaturated compound is a chemical compound that contains carbon-carbon double bonds or triple bonds, such as those found in alkenes or alkynes, respectively.
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Answer:
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Explanation:</h2><h3>average atomis mass.....(<u>75.77 × 34.97 + 24.23×36.96 ) ÷100</u> and answer should be 35.452</h3>
The mass of a lead ball with a radius of 0.50mm is 5.9714226× g
The density of a substance is defined as the mass of substance per unit of its volume. Density is represented by the symbol, ρ.
The formula for density is -
Density (ρ) = <u> mass (m) </u>
volume (v)
Given :
Density of lead = 11.4 g/cm³
Radius of lead ball = 0.50 mm = 0.05 cm
Since,
Vsphere = 4/3 π r³
v = <u>4 </u>× 3.14 × (0.05)³
3
v = 4.18 x (1.25 x 10⁻³)
v = 5.225 x 10⁻³
Since,
Density = <u> mass </u>
volume
11.4 g/cm³ = <u> mass </u>
5.225 x 10⁻³
mass = 11.4 x (5.225 x 10⁻³)
mass = 5.9565 x 10⁻² or 0.05955 g
So, the mass of a lead ball with a radius of 0.50mm is 5.9565 x 10⁻² g
To learn more about density,
brainly.com/question/14084745
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