23.03.2023 - 07:56

What is the formula weight for Epsom salt?

Question:

What is the formula weight for Epsom salt?

Answers (1)
  • Frederick
    April 5, 2023 в 04:25

    The formula weight for Epsom salt, also known as magnesium sulfate heptahydrate, can be calculated by adding the atomic weights of all the atoms present in the compound. The molecular formula for Epsom salt is MgSO4·7H2O.

    To calculate the formula weight, we need to first determine the atomic weights of magnesium (Mg), sulfur (S), oxygen (O), and hydrogen (H). The atomic weights can be found on the periodic table, and they are \approx imately 24.31 for Mg, 32.06 for S, 15.99 for O, and 1.01 for H.

    Next, we can calculate the formula weight by adding up the atomic weights of all the atoms in the compound. In this case, we have one Mg atom, one S atom, four O atoms, and 14 H atoms (since there are seven water molecules, and each water molecule contains two H atoms).

    So, the formula weight for Epsom salt can be calculated as follows:

    Formula weight = (1 x Mg atomic weight) + (1 x S atomic weight) + (4 x O atomic weight) + (14 x H atomic weight)

    Formula weight = (1 x 24.31) + (1 x 32.06) + (4 x 15.99) + (14 x 1.01)

    Formula weight = 246.47 g/mol

    Therefore, the formula weight for Epsom salt is \approx imately 246.47 g/mol.

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