for example : C9H8O4
would be written as: C=Carbon 9
H= Hydrogen 8
O= Oxygen 4
But I need to know how to do those that are in parenthesis like:
Mg(OH)2
help please.thank you
2007-01-11 14:51:38 · 4 answers · asked by M B 1 in Science & Mathematics ➔ Chemistry
the 2 goes with everything in parentheses so in your problem it would be O=Oxygen 2 H=Hydrogen 2 Mg=Magnesium 1. If there is a number with the atom in the parentheses already like (H2O)2 then multiply the two numbers and get H=hydrogen 4.
2007-01-11 14:59:01 · answer #1 · answered by premed student 2 · 0⤊ 0⤋
To remove parentheses: MgO2H2. This is useful if you need to calculate formula weight from:
Atomic weights: Mg = 24 O = 16 H = 1 Mg(OH)2 = 58
2007-01-11 22:58:52 · answer #2 · answered by steve_geo1 7 · 0⤊ 0⤋
Mg=1, O=2 and H=2
b/c u just multiple the number to all the elements inside the parenthesis.
I hope this helps!!
2007-01-11 22:58:29 · answer #3 · answered by smart-crazy 4 · 0⤊ 0⤋
mg=1
o=2
h=2
2007-01-11 22:56:25 · answer #4 · answered by np200012 2 · 0⤊ 0⤋