107 809
Assignments Done
100%
Successfully Done
In December 2024
In December 2024
Your physics assignments can be a real challenge, and the due date can be really close — feel free to use our assistance and get the desired result.
Physics
Be sure that math assignments completed by our experts will be error-free and done according to your instructions specified in the submitted order form.
Math
Our experts will gladly share their knowledge and help you with programming projects. Keep up with the world’s newest programming trends.
Programming
Answer to Question #3093 in Inorganic Chemistry for sweet
Question #3093
13.4 g of a sample of unstable hydrated salt: Na2SO4. xH20 was found to contain 6.3g of water. Determine the number of water of crystallization
Expert's answer
The molar mass of the salt is m(Na2SO4* xH2O) = 2*23+32+16*4 + x (2 + 16) = 142 + x*18 [g/mol]
Then let's construct the proportion:
13.4 / 6.3 = (142 + 18x)/18x
13.4 * 18x = (142 + 18x) * 6.3
241.2x = 894.6 + 113.4x
127.8x = 894.6
x = 7
Na2SO4* 7H2O
Then let's construct the proportion:
13.4 / 6.3 = (142 + 18x)/18x
13.4 * 18x = (142 + 18x) * 6.3
241.2x = 894.6 + 113.4x
127.8x = 894.6
x = 7
Na2SO4* 7H2O
Learn more about our help with Assignments: Inorganic Chemistry
-
![Help me with my assignment!]()
Who Can Help Me with My Assignment
There are three certainties in this world: Death, Taxes and Homework Assignments. No matter where you study, and no matter…
-
![How to finish assignment]()
How to Finish Assignments When You Can’t
Crunch time is coming, deadlines need to be met, essays need to be submitted, and tests should be studied for.…
-
![Math Exams Study]()
How to Effectively Study for a Math Test
Numbers and figures are an essential part of our world, necessary for almost everything we do every day. As important…
Comments
Dear Madhav, You're welcome. We are glad to be helpful. If you liked our service please press like-button beside answer field. Thank you!
Thank you sir. This will really help me
It is formed by fact that we know the total mass of compound and how much water it contains. Then it is clear the proportion of water mass in compound to the total mass will be the same as the ratio of molar mass of water to the total molar mass of compound.
Pls tell how is this proportion formed
You're welcome. We are glad to be helpful. If you liked our service please press like-button beside answer field. Thank you!
Thanks... I needed that.
Leave a comment