What is the molar mass of Mg(NO3)2? Explain how you calculated this value.

Question

anonymous · Answer

look here bombfizzle66, To solve this problem you will need a periodic table. Now look for Magnesium and find the molar mass. Mine says 24.31gs Oxygen is 16g but you have to times it by 3 and nitrogen is 12.01gs now you see the parenthesis (no3)2 that means the sum of (N+O3)*2 (12.01+ 16*3)*2 which is 120+24.31g which is 144.1gs. i know its a bit confusing... but to simplify it all you have to do is find the molar mass of each individual element then do the math... and if u cant see the math ask your teacher to clarify why this works once u understand the concept chemistry will be ALOT more fun!

nikato · Answer

just add up all the atomic mass for each element in that compound^