Anonymous
Anonymous asked in Education & ReferenceHomework Help · 1 decade ago

Chem question (please help if you can :)?

"You are given a bottle that contains 4.59cm3(cubed) of a metallic solid. The total mass of the bottle and solid is 35.66g. The empty bottle weighs 14.23 g. What is the density of the solid? Mercury is traded by the "flask" , a unit that has a mass of 34.5kg. What is the volume of a flask of mercury if the density of mercury is 13.5g/mL?"

Sorry, a big question that I do not understand. If you have the answer, can you please explain how you got it. Thanks :)

2 Answers

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  • 1 decade ago
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    Mass of bottle − empty bottle = mass of metallic solid

    35.66 g − 14.23 g = 21.43 g

    Density = Mass/Volume

    x g/cm³ = (21.43 g) / (4.59 cm³)

    = 4.70 g/cm³

    So the density of the metallic solid is 4.70 g/cm³ (or g/mL).

    Volume = Mass/Density

    x mL = (34.5 kg) / (13.5 g/mL)

    x mL = (34500 g) / (13.5 g/mL)

    = 2555.55 mL = 2.56 L

    Source(s): Er... head. No guarantees on correctness.
  • 1 decade ago

    This is two questions... I hate when they squish two questions together, it only confuses people.

    35.66g - 14.23g = mass of solid

    mass of solid / 4.59cm3 = density (D=M/V)

    Again D = M / V so, if we want the volume, solve for V.

    V = M / D

    So:

    34.5kg / 13.5g/mL = the volume of a "Flask" of mercury

    you can easily find the answers from this information... I'm just feeling extra lazy this evening, so I won't answer the question directly... Sorry... hope I helped enough.

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