Question

Aluminum, silicon, and oxygen form minerals known as aluminosilicates. How many moles of aluminum are in 0.900 moles of pyrophyllite, Al2Si4O10(OH)?

Answer 1

There are 1.8 moles of aluminum.

Step-by-step explanation:

To solve this problem we need to convert moles of pyrophillite (Al₂Si₄O₁₀(OH)) into moles of aluminum (Al):

• In one mol of Al₂Si₄O₁₀(OH) there are two moles of Al.

With the above information in mind we can now do the conversion:

• 0.900 moles Al₂Si₄O₁₀(OH) *
  `(2molAl)/(1molAl_2Si_4O_(10)(OH))`= 1.8 mol Al

Thus the answer is that there are 1.8 moles of aluminum.