Answer:
Explanation:
There are no molecules in NaCl, because it consists only of ions.
However, we can calculate the number of formula units (FU) of NaCl.
Step 1. Calculate the moles of NaCl
Step 2. Convert moles to formula units
There are in 3.6 g of NaCl.
Explanation:
from the equation 1 mole of O2 will give 2 moles of H2O then 6.0 moles of O2 will give x
6.0*2 moles/ 1 mole
= 12 moles
this implies that, 6.0 moles of O2 will give = 12 moles of water
Answer:
it will decrease the speed
First, we need to find the
limiting reactant. <span>
149 g Al x 1 mole/27g Al = 5.52 mol Al
601 g Fe2O3 x 1 mole/159.6g Fe2O3 = 3.77 mol Fe2O3
<span>Al is the limiting reactant since 3.77 mol Fe2O3 would
require 3.77*2 = 7.54 mol Al but the given is less.
<span>mol Al2O3 = 5.52 mol Al * 1 mol Al2O3 / 2 mol Al
= 2.76 mol</span>
mass Al2O3 = 2.76 mol x 102g/1 mole AlO3 = 281.52 g Al2O3
will be formed. </span></span>
<span>
Since 3.77 mole of Fe2O3 is present, but 5.52 mole Al is the
limiting reactant, then only 5.52/2 mole Fe2O3 can be used. This leaves an
excess of:</span>
Fe2O3 excess = 3.77 – 5.52/2
= 1.01 <span>
<span>1.01 mole Fe2O3 x 103.8g/1 mole Fe2O3 = 104.84 g Fe2O3 </span></span>
I think it was too hot so then the mass went up