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Nady [450]
3 years ago
13

A 4 gram metal object displaces 2 mL of water in a graduated cylinder. What is the density of the metal object?

Chemistry
1 answer:
castortr0y [4]3 years ago
3 0
Density=mass/volume
Density= 4 g/2 mL/cm3
Density =2 g/cm3
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Answer:

mol=0.0709mol

Explanation:

Hello,

In this since one mole equals 6.022x10²³ particles of silver by means of the Avogadro's number, we can compute the moles in 4.27x10²² particles as shown below:

mol=4.27x10^{22}particles*\frac{1mol}{6.022x10^{23}particles}\\\\mol=0.0709mol

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According to Δ G formula:

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                                                              = 71.8 KJ/mol * 1.11 mol
                                                             
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and T is the absolute temperature (K)= 64 °C + 273°C = 337 K

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by substitution:

when at equilibrium ΔG = 0 

∴ΔS = ΔH / T

       =79.7 KJ/ 337 K

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