The annual interest rate for a customers loan of $675 is 19.25%. What is the total dollar amount to be repaid on the loan, including principle and interest, for the entire year?
May 31, 2012
Write a slope field for the differential equation. Corporate administrators notice that 13% of their employees retire each year, while 2,500 are newly hired. What is the long term effect if they initially have 30,000 employees?
April 1, 2012
A shopkeeper packages together two types of hard candy: peppermint and cinnamon. Seperately the peppermint candy sell for $1.80/kg and the cinnamon candy sells for $2.40/kg. The mixture sells for $2.16/kg. Determine the amount of each type of candy that is required to make ...
January 13, 2012
A car air bag requires 70. L of nitrogen gas to inflate properly. The following equation represents the production of nitrogen gas: 2NAN subscript 3 yielding 2NA + 3N subscript 2 the density of nitrogen gas is typically 1.16 g/L at room temperature. How would you calculate the...
April 27, 2010
if 16.5 of iron (II) sulfide contain 6.02 x 10^23 formula units, how many formula units of iron (II) sulfide are in 1.00 mL of iron (II) sulfide? The density of iron (II) sulfide is 4.84 g/cm^3
March 22, 2010
suppose your local electric company charges $0.0650/kWxh for the first 200.0 kWxh, and then drastically raises the price for every kilowatt-hour more. What is the maximum you family would pay if they wanted to pay only the cheaper rate?
January 11, 2010
what is the enthalpy change in kilojoules for the combustion of 1 mol of ethanol, C2H5OH (l), to form gaseous carbon dioxide and gaseous water? use bond energies to calculate your answer. (hint: there is a double bond in carbon dioxide and oxygen) the answer is supposed to be...
January 23, 2007
Predicting products for electrolysis
when you have your 4 different equations to form 4 different possible equations, what two equations do you use for water, O2(aq) + 4H+ + 4e- ----> 2H20 (+1.23) 02 (g) + 2H2O (l) + 4e- ----> 4OH- (+0.40) 2H20 (l) + 2e- ---> h2 (g) + 2OH- (aq) (-0.83) I'm not quite ...
January 16, 2007
Hi, I'm in my final year of high school doing an electrochemistry unit and there is a concept I just dont really get. I would appreciate all helps please-- Redox reaction half reactions are: Oxidation: Zn(s) --> Zn 2+ (aq) + 2e- Reduction: Cu2+ (aq) + 2e- ---> Cu(s) ...
January 14, 2007