Homework Help: Chem Lab

Posted by Aliya on Monday, October 8, 2012 at 10:37pm.

I did a chem lab and have to figure out some stuff off of some data I found during the lab

Weight of empty crucible and cover: 19.74 g
Weight of crucible, cover and hydrated salt: 22.74 g
Weight of crucible, cover and hydrated salt after 1st heating: 22.13 g
Weight of crucible, cover and hydrated salt after 2nd heating: 22.56 g
Weight of crucible, cover and hydrated salt after 3rd heating: 21.54 g

Calculate the weight of the hydrated salt.

Calculate the weight of the anhydrous salt.

Chem Lab - DrBob222, Monday, October 8, 2012 at 11:10pm
http://www.jiskha.com/display.cgi?id=1349747546
Chem Lab - Aliya, Tuesday, October 9, 2012 at 1:37am
Calculate the weight of the water lost by heating.

Calculate the percentage of water in the hydrate.

Calculate the number of moles of H2O lost by heating.

Calculate the number of moles of anhydrous salt.

Enter the formula of the hydrated salt.

Calculate the theoretical percentage of the water in the hydrate.

Calculate the experimental error.

Calculate the percentage error.
Chem Lab - Aliya, Tuesday, October 9, 2012 at 4:25am
I need help with these problems as soon as posible Please
Chem Lab - Aliya, Tuesday, October 9, 2012 at 9:38am
I need help with these problems as soon as posible Please

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