Tuesday
May 21, 2013

# Posts by dEE

Total # Posts: 626

Physics
A 2000 kg car is slowed down uniformly from 18.0 m/s to 5.00 m/s in 4.20 s. (a) What average total force acted on the car during that time? (b) How far did the car travel during that time?

latin
English to latin translation needed. Friends, hurry to our house now.

CHEM
Thanks a lot :)

CHEM
Thanks a lot :)

CHEM
9.60 g of hydrated nickel (II) sulfate is heated to produce 5.26 g of anhydrous compound NiSO4. Calculate the number of moles of anhydrous nickel (II) sulfate. Calculate the number of moles of water lost. What is the empirical formula of the hydrate?

CHEM
A sample of an unknown hydrate weighs 0.500 g and after heating it weighs 0.100. What is the percent of water in the hydrate?

CHEM
A 7.5 g sample of Cu(NO3)2.nH2O is heated. After the water has been driven off, 5.8 g of Cu(NO3)2 remains. What is the value of n in the empirical formula of this hydrate?

math
48 inches to 3 feet

Chemistry
Lab: Titration of NaOH (0.1 molar)to unknown solid acid. Trying to determine the equilivent weight of the unknown acid in the experiement. I am trying to figure out if I add too much base solution by accident to an unknown acid during titration would it affect the equivalent w...