Question

the mass of nickel metal can be completly oxidized by reaction with 500 ml of 12.1 hydrochloric acid ?

Answer 1

1. write an equation for this reaction
2. balance that equation see this video if you dont know how to https://www.youtube.com/watch?v=UGf60kq_ZDI
3. Find moles of HCl using the formula Molarity (M) = moles/Litres, you have 12.1M HCl solution and a volume of 500mL or 0.500L
4. Using the balanced equation convert from moles of HCl to moles of Ni if you dont know how watch this video
https://www.youtube.com/watch?v=S6UQX7ZdkTg
5. Convert moles of Ni to grams using the equation:
grams = moles/molecular mass of Ni

Answer 2

thats my main problem idk how i should write the equation for this

Answer 3

Ni + HCl -> NCl2 + H2

Answer 4

LEO GER

Lose electrons oxidation
gain electrons reduction.

Nickel will give off two electrons to form hydrogen gas

http://chemwiki.ucdavis.edu/Analytical_Chemistry/Electrochemistry/Redox_Chemistry/Standard_Reduction_Potential

Answer 5

Hope this helps