How many grams does 2.1 moles of SnF, weigh?

Question

How many grams does 2.1
moles of SnF, weigh?

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Kim Cúc 4 months 2021-07-30T17:03:15+00:00 1 Answers 4 views 0

Answers ( )

    0
    2021-07-30T17:05:06+00:00

    Answer:

    289.8g

    Explanation:

    Using the formula as follows:

    mole = mass/molar mass

    Molar mass of SnF = 119 + 19

    = 138g/mol

    Using mole = mass/molar mass

    2.1 = mass/138

    mass = 2.1 × 138

    mass = 289.8g

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )