Answer:
You will generate 0.124 moles of aluminum when you react 0.372 moles of potassium
Explanation:
Determine the reaction:
3K + AlBr₃ → Al + 3KBr
Ratio is 3:1
3 moles of K can produce 1 mol of Al
So, 0.372 moles of K, may produce (0.372 .1) /3 = 0.124 moles of Al
Answer:
Explanation:
The answer is 9.03 × 10²⁴ molecules.
Avogadro's number is the number of units (atoms, molecules) in 1 mole of substance.
Make the proportion.
6.02 × 10²³ molecules per 1 mol
x per 15 mol
6.02 × 10²³ molecules : 1 mol = x : 15 mol
x = 6.02 × 10²³ molecules * 15 mol * 1 mol
x = 90.3 × 10²³ molecules
x = 9.03 × 10 × 10²³ molecules
x = 9.03 × 10²³⁺¹ molecules
x = 9.03 × 10²⁴ molecules
Answer:
D i think, sorry if its wrong
Explanation:
Element Symbol Mass Percent
Oxygen O 16.985%
Potassium K 83.015%