Esha Asif · 2026-09-07T21:57:52.463Z

Guys can anyone solve it ??

Mussanah Akbar · 2026-09-07T22:07:08.943Z

one min

Mussanah Akbar · 2026-09-07T22:18:48.709Z

Got it. the bot is doing it wrong, it is not a limiting reactant question, it is a percentage yield question.

Mussanah Akbar · 2026-09-07T22:27:42.222Z

First find the theoritical yield, that is the moles you get when no heat is lost and everthing is perfect. you do this by comparing equation moles of Al and Cu. they are in 2:3. So calulate the moles of Al first by dividing 5.4g to 27, which will give you 0.2 . Now by using ratio method find x, that is the moles of Cu. We can find it by 3 multiply by 0.2 and then divide the answer by 2. You will get the Theoritical yield.Now to get the the actual yield just simply divide 15.36 by 64, you will get 0.24. Now to find percentage yield apply the formula of percentage yield. PY= A/T multiply by 100. 0.24/0.30 multiply by 100===80%.

Mussanah Akbar · 2026-09-07T22:28:26.709Z

it was very easy, try the questions like this from A levels

Mussanah Akbar · 2026-09-07T22:36:42.789Z

In these types of Questions first think what are the things i need to calculate the answer and then break the calculation into steps, like stairs, then you will reach the Top.

Mussanah Akbar · 2026-09-07T22:42:31.675Z

But You will need a Calculator for this question, otherwise it will take a long time and a very high chance that you will end up getting the wrong answer. So dont worry, I dont think this will come in MDCAT. If it does do it after you finish the exam, at the end.