Recent Homework Questions About Chemistry
Yes, that's right. :)
Sunday, December 8, 2013 at 10:45pm
How many mols do you need? That's mols K2Cr2O7 = M x L = ? Then mols = g/molar mass. You know mols ad molar mass. solve for grams.
Sunday, December 8, 2013 at 8:59pm
__2K + __CaBr2 → __2KBr + __Ca
Sunday, December 8, 2013 at 8:56pm
Q2: A sample of carbon dioxide(CO2) has a mass of 55g and occupies 3.3L at 100C. What pressure does the gas exert (in kPa)?
Sunday, December 8, 2013 at 7:45pm
Q3: In the combustion reaction of 149g of propane(C3H8) with excess oxygen, what volume of carbon dioxide(CO2) is produced at STP? (note: balance the reaction first) C3H8 + O2 3CO2 + H2O
Sunday, December 8, 2013 at 7:44pm
2NaOH + 2Al + 6H2O 2NaAl(OH)4 + 3H2 Use PV = nRT and solve for n = mols H2 OR remember at STP 1 mol occupies 22.4L. Using the coefficients in the balanced equation, convert mols H2 to mols Al Then mols Al = grams/atomic mass. You know atomic mass and mols, solve for ...
Sunday, December 8, 2013 at 7:43pm
I HAVE NO CLUE
Sunday, December 8, 2013 at 7:26pm
Thursday, December 13, 2012 at 1:10am
Gas Law Chemistry
Thursday, October 25, 2012 at 4:56pm
b, d, e, a, c
Tuesday, April 17, 2012 at 10:27pm
is the answer 1,663,558.4 J
Monday, January 30, 2012 at 10:58am
What is Kc if [CO2]=[H2O]=0.01M and [C2H4]=[O2]=0.0001M
Saturday, October 25, 2008 at 12:16am