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Chemistry - STP problem?

what is the mass, in grams of 545 ml of He at STP?

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  • HPV
    Lv 7
    8 years ago
    Favorite Answer

    One mole of ANY gas at STP has a volume of 22.4 L.

    545 mL He x (1 L / 1000 L) x (1 mole He / 22.4 L He) x (4.00 g He / 1 mole He) = 0.0973 g He

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