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September 20, 2014

Posts by Chem


Total # Posts: 108

chemistry
Does the element sodium have properties in common with NaCl? Explain
February 11, 2008

chemistry
Which of the following subshells is correctly designated? a. 1f5 b. 3s3 c. 6f12 d. 4d11 e. 1p2
December 7, 2007

chemistry
Which of the following subshells is correctly designated? a. 1f5 b. 3s3 c. 6f12 d. 4d11 e. 1p2
December 7, 2007

Dan
N2 + 3H2 --> 2NH3 At 25°C (delta)Ho = -92.22 kJ and (delta)So = -198.53 J/K. Using this information, calculate the equilibrium constant for the reaction at 2.43x10^2°C. (R = 8.314 J/K) Apparently the way I'm doing it is wrong: I divide 198.53 by ...
November 17, 2007

BIOCHEMISTRY
calculate the pOH of 3X106-6M of HF
September 7, 2007

BIOCHEM
calculate the pH of 0.0076M KOH
September 7, 2007

chem!
Calculate the heat of reaction for the incomplete combustion of 67.0g propane producing carbon monoxide gas and water vapour. how would I go about and do this question? What are you studying? Do you know how to use the thermodynamic tables (delta Ho, etc). delta Hrxn = delta ...
May 14, 2007

question
whats relationship between temp and kinetic energy http://www.google.com/search?as_q=temperature+kinetic+energy+&hl=en&num=10&btnG=Google+Search&as_epq=&as_oq=&as_eq=&lr=&as_ft=i&as_filetype=&as_qdr=all&as_nlo=&as_nhi=&as_occt=title&as_dt=i&as_sitesearch=&as_rights=&safe=images
March 7, 2007

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