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January 26, 2023

Dissolving 33mg Bismuth in 63% HNO3 with density 1,370 g/mL is my problem, which I need to calculate and I know how to calculate it, except it does not say exactly whi

chemistry exercise

Dissolving 33mg Bismuth in 63% HNO3 with density 1,370 g/mL is my problem, which I need to calculate and I know how to calculate it, except it does not say exactly which reaction occurs. But there are so many different reactions between Bi and HNO3.

HNO3 + Bi = …I need to know the ratio of moles of HNO3 and Bismut to calculate my problem. Can you help me?
So, i need this: N(HNO3) / n(Bi)

My problem is, there are many different reactions between HNO3 and Bismuth as you can see in the picture. So which ratio do you use here?
Do you calculate the average ratio of all the reactions or how do you get this ratio n(HNO3) : n(Bi)? If so, how do you calculate the average?
My problem does not say which reaction occurs in the experiment, so how can I calculate the ratio of moles?

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