Recent Homework Questions About Chemistry
You look up the properties of each. Ca is a solid (s), HNO3 I assume is aqueous (aq), Ca(NO3)2 will be aq and H2 is gas (g).
Monday, December 2, 2013 at 2:02pm
SO2Cl2(g) SO2(g) + Cl2(g) The Kp for the reaction is 2.18 at 648 K. A sample of SO2Cl2 is placed in a container and heated to 648 K while the total pressure is kept constant at 9.00 atm. Calculate the partial pressures of the gases at equilibrium.
Monday, December 2, 2013 at 7:09am
Lysine, an essential amino acid in the human body, contains C,H,O and N only. In an experiment, the complete combustion of 2.175 g lysine gave 3.94 g of CO2 and 1.89 g of H2O. In another reaction, the nitrogen content of 1.873 g of lysine is quantitatively converted to 0.436 g...
Monday, December 2, 2013 at 7:02am
Go to Google. Type in "3.0 meters to yards" without the quotation marks and hit the enter button. Up pops the answer.
Sunday, December 1, 2013 at 8:17pm
GIVE THE BOND ORDER FOR EACH BOND IN THE FOLLOWING MOLECULES OR IONS: CH2O,SO32-,NO2+,NOC1
Sunday, December 1, 2013 at 8:05pm
In brief, this is what you do. Let me know where you need additional help but show your work from the beginning to the point you need help. You need to convert 0.48g CO2 to g C. Convert 0.1636g H2O to g H (not H2). Convert 0.0618g NH3 to g N (not N2). a. gC + gH + gN = 0.2 ...
Saturday, November 30, 2013 at 9:52pm
You must have a table or graph (or something) in your text/notes that gives the solubility at 30 C and 60 C. I don't have those tables available. If you want to type that info in I can show you how to work the problem.
Saturday, November 30, 2013 at 9:28pm
the second one is very similar except you need to know how many moles of Calcium are 2.94 grams atomic mass of calcium = 40 grams/mole approx so 2.94 g /40 g/mole = .0735 moles of Ca so you will need twice that many moles of HCl
Saturday, November 30, 2013 at 5:35pm
Wednesday, June 5, 2013 at 10:54am
Friday, March 1, 2013 at 12:45pm
Thursday, December 6, 2012 at 11:09pm
Chemistry AP HELP!
Friday, November 18, 2011 at 11:28pm
calculate the volume of sulfur dioxide produced when 27.9 mL O2 reacts with carbon disulfide to produce carbon dioxide and sulfur dioxide at STP
Wednesday, May 25, 2011 at 1:47pm
what is the lewis dot structure for c1f2+
Friday, November 14, 2008 at 1:34pm