IDNStudy.com, ang komunidad ng pagbabahagi ng kaalaman at mga sagot. Magtanong at makakuha ng detalyadong sagot mula sa aming komunidad ng mga eksperto.

How many moles of Mn (OH)2 should react with Al so as to have 10 moles of Al2O3?
Mn(OH)2 + AI → Al(OH)3 +
Mn


Sagot :

Answer:

15 mol Mn(OH)2

Explanation:

The first step when given a chemical reaction is to balance it. That means there are equal moles of Mn on the reactant side [left] as on the product side [right]. In this case we have manganese hydroxide reacting with aluminum, which is a displacement reaction. So the ff is the balanced reaction:

3 Mn(OH)2 + 2 AI →  2 Al(OH)3 +  3 Mn

Now, get the ratio of how many moles of Mn(OH)2 per moles of Al2O3. The answer is 3:2. That means you need 15 moles of Mn(OH)2

3/2 = x/10

x = 15