How many moles of hydrogen will be evovled when 6.50g of zinc (atomic weight=65 ) is dipped in 6.023×10²³ molecules of hydrochloric acid at std
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Answer:
what mass of Zinc is required to produce Hydrogen by reaction with HCL which is enough to produce 4 mol of ammonia according to the reactions :- Zn + 2HCL→ZnCl2 + H. 3H2 + N2 →2NH. So, for this we 6 moles of H2 are required.
Explanation:
Use the mass of the hydrogen gas to calculate the gas moles directly; divide the hydrogen weight by its molar mass of 2 g/mole. For example, 250 grams (g) of the hydrogen gas corresponds to 250 g / 2 g/mole = 125 moles
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