calculate equivalents?

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calculate equivalents?

calculate the number of equivalents in each of the following...

40g of Mg+2
16g of Al+3

is it just 2eq and 3eq for the answers or do you have to so something with the grams???

2007-12-05 06:05:08 · 1 answers · asked by onehotmama 2 in Science & Mathematics ➔ Chemistry

1 answers

Eq. wt. = Mol. wt./Valence

40gMg++ x 1molMg++/24gMg++ x 2eqMg++/1molMg++ = 3.3 eqs Mg++

16gAl+++ x 27gAl+++/1molAl+++ x 3eqAl+++/1molAl+++ = 1.8 eq Al+++

2007-12-05 06:31:58 · answer #1 · answered by steve_geo1 7 · 0⤊ 0⤋