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chemdumby
Questions (5)
If the average quarter weighs 5.67grams, how many atoms of nickel are in a quarter?
ie; 91.67%mass/copper 8.33%mass/nickel I took
2 answers
1,272 views
If a person were to drink 2L of water a day containing 100ppb Nickel for an entire lifetime (assume 72yrs)
I took 100/1x10^-9 x
4 answers
404 views
what are the oxidatoin numbers in this chemical reaction Ni+H2SO4=H2+NiSO4? is it
Reactants: Ni=0 H=1 SO4=-2? Products:H=1 Ni=2+
1 answer
1,302 views
using this equation: Ni+H2SO4=H2+NiSO4
how many liters of hydrogen gas at 298degK and 2.5atm could be produced if you react 25
2 answers
1,124 views
Nickel2 sulfate is produced when elemental nickel metal is dissolved in sulfuric acid to make nickel2 sulfate. Hydrogen gas is
4 answers
951 views
Answers (5)
I ended up getting 4.21L of H2 is that right? The steps I took were 25gNi/58.6934=.43mol Ni v=(.43)x(0.0821x1atm/molK)x(298K)/2.5atm=4.21L H2? this doesn't look right...
oh sorry :( how many grams of Ni would a person ingest in their lifetime? If a person drank 2L of water a day containing 100ppb Ni
thank u so much!
or should it be 5.2596x10^15?
bob is the balanced equation Ni+H2SO4=H2+NiSO4? I also think it could be 2Ni+H2SO4=H2+Ni2So4? I am confused...