# Posts by viki

Total # Posts: 8

**math**

508.94 squared inches

*March 11, 2016*

**Math**

Our difference is 6. We have a sum of 14. What numbers are we? We know only number 10. What is the missing number?

*January 26, 2016*

**chemistry**

55.8

*September 1, 2013*

**chemistry**

Barium Nitrate is a not very soluble nitrate. Calculate the Ksp (at 25 degrees) from the following ΔG's: Ba2+ = -561kj/mole NO3 1- = - 109kj/mole Ba(NO3)2 = - 797 kj/mole I did the first step and I ended up with dGrxn = -127 kj/mol. When I plugged it into the second ...

*May 4, 2012*

**Chemistry**

I am working on the same problem. I did the first step DrBob gave and I ended up with dGrxn = -127 kj/mol. When I plugged it into the second equation I got -127000/(-298)(8.314) = 51.2599. Then if I take the e of this I get 1.8x10^22. I feel like this is way off, since the ...

*May 2, 2012*

**chemistry**

Thank you! But how would i figure out the "??" I totally suck at chemistry!.. idk how to find the solubility ..?

*March 1, 2009*

**chemistry**

Here is a following practice question on my study guide. i have no idea on how to do it. Any help would be appreciated! Thanks you. A solution contains 26.5g NaCl in 75.0g H2O at 20 degrees Celsius. Determine if the solution is saturated, unsaturated, or supersaturated. (The ...

*March 1, 2009*

**word unscramble**

i think you are missing some letyters to me it looks like the 1st one says christmas wreath the 2nd looks like it would be holy water

*December 20, 2007*

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