I want to thank your team (Jeff) for finding a new writer when you were unable to reach my existing writer to revise my paper. I appreciate your professionalism and efforts. Thanks
Start with the balanced chemical reaction
##”Pb”(“NO”_ 3)_ (2(aq)) + color(red)(2)”NaI”_ ((aq)) -> 2″NaNO”_ (3(aq)) + “PbI”_ (2(s)) darr##
As you can see, lead(II) nitrate reacts with sodium iodide in a ##1:color(red)(2)## mole ratio, which means that the reaction will always consume twice as many moles of sodium iodide than moles of lead(II) nitrate.
The number of moles of sodium iodide can be determined by using the volume and molarity of the solution
##75 color(red)(cancel(color(black)(“mL”))) * (1 color(red)(cancel(color(black)(“L”))))/(10^3color(red)(cancel(color(black)(“mL”)))) * overbrace(“0.20 moles NaI”/(1color(red)(cancel(color(black)(“L”)))))^(color(blue)(“= 0.20 M”)) = “0.015 moles NaI”##
According to the aforementioned mole ratio, this many moles of sodium iodide will require
##0.015 color(red)(cancel(color(black)(“moles NaI”))) * (“1 mole Pb”(“NO”_3)_2)/(color(red)(2)color(red)(cancel(color(black)(“moles NaI”))))##
##= “0.0075 moles Pb”(“NO”_3)_2##
Now all you have to do is use the molarity of the lead(II) nitrate solution to find the volume that would contain that many moles of solute
##0.0075 color(red)(cancel(color(black)(“moles Pb”(“NO”_3)_2))) * “1 L”/(0.10 color(red)(cancel(color(black)(“mole Pb”(“NO”_3)_2))))##
##= “0.075 L”##
Expressed in milliliters, the answer will be
##color(green)(|bar(ul(color(white)(a/a)color(black)(“volume of Pb”(“NO”_3)_2 = “75 mL”)color(white)(a/a)|)))##
The answer is rounded to two .
Delivering a high-quality product at a reasonable price is not enough anymore.
That’s why we have developed 5 beneficial guarantees that will make your experience with our service enjoyable, easy, and safe.
You have to be 100% sure of the quality of your product to give a money-back guarantee. This describes us perfectly. Make sure that this guarantee is totally transparent.Read more
Each paper is composed from scratch, according to your instructions. It is then checked by our plagiarism-detection software. There is no gap where plagiarism could squeeze in.Read more
Thanks to our free revisions, there is no way for you to be unsatisfied. We will work on your paper until you are completely happy with the result.Read more
Your email is safe, as we store it according to international data protection rules. Your bank details are secure, as we use only reliable payment systems.Read more
By sending us your money, you buy the service we provide. Check out our terms and conditions if you prefer business talks to be laid out in official language.Read more