Answered

At Westonci.ca, we make it easy for you to get the answers you need from a community of knowledgeable individuals. Discover solutions to your questions from experienced professionals across multiple fields on our comprehensive Q&A platform. Discover in-depth answers to your questions from a wide network of professionals on our user-friendly Q&A platform.

1 mol of hydrogen gas and 1 mol of iodine vapour were mixed and allowed to react. After t seconds 0.8 mol of hydrogen remained.
The number of miles of hydrogen iodide formed at t seconds was..
A) 0.2
B) 0.4
C) 0.8
D) 1.6

The answer is B but please explain how you work this out?

Sagot :

marmal
At the beginning there was just 1 mole of hydrogen and 1 mole of iodin.
The reaction goes:
[tex]H_2+I_2\Rightarrow\ 2HI[/tex]
One mole of hydrogen goes with one mole of iodin, creating 2 moles of product.
If 0.8 of hydrogen remaind, it means that 1-0.8=0.2 reacted.
So:
1 mole H2 react with 1 mole I2 creating 2 moles of products.
So 0.2 of hydrogen reacted with 0.2 mole of iodin creating 0.4 moles.
[tex]1\ mole\ H_2\ ---\ 2\ moles\ HI\\ 0.2\ mole\ \ \ ---\ x\\ x=0.4[/tex]
Thank you for your visit. We're dedicated to helping you find the information you need, whenever you need it. We hope you found what you were looking for. Feel free to revisit us for more answers and updated information. Thank you for choosing Westonci.ca as your information source. We look forward to your next visit.