5 x 2 = 10
3 x 3 = 9
10/9, or 1 1/9 is your answer
hope this helps
We first determine the complete reaction of the substances given above to tell whether precipitates are formed.
NaCl + NaBr = no reaction
NaCl + Na2CO3 = no reaction
<span>NaCl + BaCl2 = no reaction</span>
<span>NaCl + HCl = no reaction
</span>
From all the substances given, reaction cannot happen therefore no precipitates are formed.
1. So 27.3 g Fe is 0.4911 mol (27.3 / 55.58). 45.8 g O is 2.862 mol. Because of the stoichiometry, 3/4 as much oxygen as iron gets consumed. For the 0.4911 mol Fe consumed, 0.3683 mol O is consumed. 2.862-0.3863 = 2.4757 mol, or 39.6 g O is left.
2. Hydrogen is the limiting reactant for these quantities. 2/3 as much ammonia is produced as hydrogen is consumed, so for 5.0 mol H2, that's 3.33 mol NH3.
Make sense?
Answer:
The answer is D, for the test with
1 × 10-2 M
5 × 10-2 M
5 × 10-4 M
1 × 10-8 M
Explanation: