Jack asked in Science & MathematicsChemistry · 2 months ago

I have some "Mole" questions?

How many moles are in 84g ?

and in 5g?

6 Answers

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  • 2 months ago
    Favourite answer

    "84g citric acid and 5g sugar"

    The formula for citric acid is H3C6H5O7 and its molar mass is 192.123 g/mol. To get the moles, we divide:

    84 g / 192.123 g/mol = 0.43722 mol (round off more as you see fit)

    ==========

    There are many compounds under the generic name of sugar. Let's use glucose, C6H12O6.

    5 g / 180.1548 g/mol = 0.027754 mol (round off more as you see fit)

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  • 1 month ago

    It depends on the mole really, a star nosed mole weighs far less than a european mole.

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  • Jim
    Lv 7
    1 month ago

    Moles (mol) is a quantity of things like atoms

    Mass (kg) is weight. They are related by "Molar Mass"

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  • Dr W
    Lv 7
    2 months ago

    sounds like trolling to me. 

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  • 2 months ago

    Depends on the substance

    Each substance has a molar mass

    Example:

    hydrogen  1.0008g/mol

    Oxygen 15.999g/mol

    1 Mole of Sodium bicarbonate NaHCO₃ is 84.007g/mol

    So...

    What substance?

    • Jack2 months agoReport

      Oh yeah ofc. 84g citric acid and 5g sugar 

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  • 2 months ago

    Mole is not a unit of mass. Each element (and therefore compound) has its own molar mass so you would need to know what substance you are referring to. For example, 84g of hydrogen gas is 42 moles. 84g of of sugar is 0.25 moles.

    • Jack2 months agoReport

      yes your right. 84g citric acid and 5g sugar is what i meant 

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