Thursday
December 12, 2013

# Posts by Jim_R

Total # Posts: 62

chemistry
thanks. your method works out. Ill stop when i have questions writing it up :)

chemistry
Sorry, my browswer is going crazy. Here's exactly what it says for part B Use 10ml pipet to transfer 10.00ml into a clean 50.00ml flask. In the fumehood add about 5ml of 6M Nh3. Dilute this to 50.00ml using distilled water.

chemistry
k thanks it says cu(nh4)2+ in my pre lab. yep. And then we added 5ml of 6M NH3. Then duluted to 50.00ml mark.

chemistry
k thanks it says cu(nh4)2+ in my pre lab. yep. And then we added 5ml of 6M NH3 That step messed me up :)

chemistry
k thanks it says cu(nh4)2+ in my pre lab.

chemistry
did i do this right calculate the con of cu(nh4)^2+ of solution. Mass of cuso4*5h20=.6000g First i dissolved the sample into 50.00ml of water. I filled up volumetric flask to 100.00 ml mark I then, pipetted 10ml of this sample into a 50.00ml volumetric flask. I then topped it ...

Earth Science
A hypothesis is a tenative explanation for a phenomena that leads to scientific inquiry to find out if its support or rejected

science
It will never be on a test don't worry about it.

chemistry
1)how many Meters of wire (diamter=6.304 x10^-3) can produced from from 5.01 lb of a mixture of ore and copper that is 66% copper d of copper =8.95 g/cm^3 cylinder =pie r^2 H answer is 8.32 x 10^3m 2) v=4/3pie r^3, r=17.282 mm my solutions books says this: 4/3 Pie (17.282 m)^3...

math
sixteen million twenty-one thousand and eight-hundred forty-nine.

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