Asked by Mark
In a chemical reaction, exactly 2 mol of substance A react to produce exactly 3 mol of substance B
2A ---> 3B
How many molecules of substance B are produced when 27.9 g of substance A reacts? the molar mass of substance A is 24.7 g/mol
STEP 1: convert the mass of A to moles
this is what i did :
2mol x 27.9g/24.7g = 2.259109 mol
is it right?
STEP 2 :convert the number of moles of A to the number of moles of B
STEP 3: convert the number of moles of B to molecules of B
2A ---> 3B
How many molecules of substance B are produced when 27.9 g of substance A reacts? the molar mass of substance A is 24.7 g/mol
STEP 1: convert the mass of A to moles
this is what i did :
2mol x 27.9g/24.7g = 2.259109 mol
is it right?
STEP 2 :convert the number of moles of A to the number of moles of B
STEP 3: convert the number of moles of B to molecules of B
Answers
Answered by
Lindsey
Step 1:
You shouldn't multiply by the 2 yet. You will use that in the next step of the problem.
Step 2: Here you will take the moles you got and use the given moles of substance.
1.1296 molA * (3 molB/2 molA)
That will give you the correct number of moles B.
Step 3: Here you use Avogadro's # to find molecules of B.
NOTE: I am not a tutor but I have done problems like this before.
You shouldn't multiply by the 2 yet. You will use that in the next step of the problem.
Step 2: Here you will take the moles you got and use the given moles of substance.
1.1296 molA * (3 molB/2 molA)
That will give you the correct number of moles B.
Step 3: Here you use Avogadro's # to find molecules of B.
NOTE: I am not a tutor but I have done problems like this before.
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.