Write the equations that represent the chemical reactions

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Reference no: EM13183162

1. In a typical experiment, you drop a gelatin capsule containing 0.1458 g of an Al-Zn alloy sample into an HCl solution.

a) Write the equations that represent the chemical reactions that take place after the capsule has dissolved in HCl?

b) Which gas is liberated and how is it collected?

c) Sketch an apparatus for the gas collection and explain all parts of your drawing.

2. When using 0.1458 g of the Al-Zn alloy, 152.61 mL of water are being displaced at temperature of 298K and a barometric pressure of 756 mmHg.

(PH2O at 298K= 23.8 mmHg; R= 0.0821 atm L /(mol K)

a) Find the number of moles of H2 evolved, nH2

b) Find NH2 , the number of moles of H2 per gram of sample.

c) Find the % Al in the sample:

Reference no: EM13183162

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