Thursday
June 20, 2013

# Posts by Aidan

Total # Posts: 38

Thanks!

We get... OH wait, do we do 0.0569 X 1.8155g = 0.103g ? so cobalt60=0.103g

Naturally occurring cobalt consists of only one isotope, cobalt59, whose relative atomic mass is 58.9332. A synthetic radioactive isotope of cobalt60, relative atomic mass 59.9338, is used in radiation therapy for cancer. A 1.8155 sample of cobalt has an apparent "atomic ...

chemistry
you use the density formula density=mass/volume and solve

Chem
Naturally occurring cobalt consists of only one isotope, cobalt59, whose relative atomic mass is 58.9332. A synthetic radioactive isotope of cobalt60, relative atomic mass 59.9338, is used in radiation therapy for cancer. A 1.8155 sample of cobalt has an apparent "atomic ...

Chem
thank you!

Chem
Find the number of protons and electrons of N-3. Would it be 7protons, and 4electrons? or 7 protons, and 7electrons?????

chemistry
Calculate the quantity of heat gained or lost: a) 3.50 mol H2O freezes at 0.0 oC b) 0.44 mol of steam condenses at 100 oC

chemistry
Will the following reaction occur Spontaneously? Show your work and reasoning in each case 1. Ca(s) + Sn^4+ -->

physics
The terminal velocity of a 4×10−5 {\rm kg} raindrop is about 9 {\rm m/s}. Assuming a drag force F_{\rm{D}} = - bv, Assuming a drag force determine the value of the constant b.

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