Question

Antique paintings will deteriorate more rapidly in a humid environment. Art museums will combat this by placing a desiccant into the room to lower the moisture in the air. The chemicals used for this are strongly attracted to the water in the air, some so much that they actually pull enough water out of the air to form a solution. These are known as deliquescents. One common deliquescent is iron(III) chloride. A curator places a dish with 8.65x1023 formula units of iron(III) chloride into a museum storage room. This dish contains ___ grams of iron(III) chloride.

Answer 1

233.1g

Explanation:

Given:

Formula units of FeCl₃ = 8.65 x 10²³ formula units

Unknown:

Mass of the FeCl₃ = ?

Solution:

The formula unit is the same as the amount of subatomic particles in an atom.

  1 mole of a substance = 6.02 x 10²³ formula units

 For  8.65 x 10²³ formula units; the number of moles;

  Number of moles = $\frac{8.65 x 10 ^{23} }{6.02 x 10^{23} }$ = 1.44moles

Now to find the mass of  FeCl₃;

   Mass of  FeCl₃ = 1.44 x 162.2 = 233.1g

learn more:

Number of moles brainly.com/question/1841136

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