How many grams of a 32.9% potassium sulfate solution would contain 181.6 g potassium
1 answer:
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Answer:
A) secondary amide
Explanation:
When carboxylic acid reacts with a primary amine, a condensation reaction takes place with the elimination of a water molecule .
For example, ethanol reacts with methylamine which is a primary amine gives N-Methylacetamide and a water molecule as:
The bond formed which is
O
||
-- C ---NH ---
is known as secondary amide group as only one hydrogen is attached to nitrogen atom in the amide bond.
Answer: (D) 0.025 mol
Explanation:
The given balanced equation is :
According to stoichiometry :
4 moles of ammonia reacts with = 5 moles of oxygen
Thus 0.30 moles of ammonia reacts with =
moles of oxygen
Now as given moles of oxygen are more than the required amount, oxygen is the excess reagent.
moles of oxygen left = 0.40 - 0.375 = 0.025
Thus 0.025 mol excess reagent remains.