calculate the number of moles of magnesium presented in a banana knowing that the one banana contains 422mg=0.422g of Mg and the atomic symb

Question

calculate the number of moles of magnesium presented in a banana knowing that the one banana contains 422mg=0.422g of Mg and the atomic symbol of Mg is Mg_24​

in progress 0
Thu Hương 3 years 2021-08-25T09:36:40+00:00 1 Answers 0 views 0

Answers ( )

  1. Doris
    0
    2021-08-25T09:37:50+00:00
    Reply

    n (moles) = m (mass in grams) / M (molar mass)

    the molar mass of magnesium is 24.31

    so n = 0.422 / 24.31
    which = 0.0174 mol

Leave an answer

Browse

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