Question

You are given Aluminum oxide, Hydrochloric acid and Zinc metal. Using these chemicals 


a. How do you prepare Hydrogen gas 

b. How do you show that Aluminum oxide is an Amphoteric oxide ​

Answer 1

Answer:

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Answer 2

Answer:

this is your answer

Explanation:

Zn(s) + 2HCl(aq) ZnCl2(aq) + H2(g)

The product gas, H2, is collected over water at a temperature of 20 °C and a pressure of 750 mm Hg. If the wet H2 gas formed occupies a volume of 9.18 L, the number of grams of H2 formed is  g. The vapor pressure of water is 17.5mm Hg at 20 °C.

2) Sodium metal reacts with water to produce hydrogen gas according to the following equation:

2Na(s) + 2H2O(l) 2NaOH(aq) + H2(g)

The product gas, H2, is collected over water at a temperature of 20 °C and a pressure of 746 mm Hg. If the wet H2 gas formed occupies a volume of 6.33 L, the number of grams of H2 formed is  g. The vapor pressure of water is 17.5mm Hg at 20 °C