Question

7. Highlight the importance of electronegativity in determining the nature of the sorption process for hydrogen storage. Determine the weight percentage of hydrogen and the nature (exothermic or endothermic) of the storage process in the following reaction: $2Al + 3H_2 \to 2AlH_3$ (molar masses of aluminum and hydrogen are 27 g/mol and 2 g/mol, respectively. The formation enthalpy $AlH_3$ is -10.9 kJ/mole). (1 + 2 + 1 marks)

Name: 7 highlight the importance of electronegativity in determining the nature of the sorption process for hydrogen storage determine the weight percentage of hydrogen and the nature exothermic o 01262
Uploaded: 2023-02-18T16:04:59-08:00
Duration: 10 min 42 s
Channel: Susan Hallstrom
Description: 7 highlight the importance of electronegativity in determining the nature of the sorption process for hydrogen storage determine the weight percentage of hydrogen and the nature exothermic o 01262

          7. Highlight the importance of electronegativity in determining the nature of the sorption process for hydrogen storage. Determine the weight percentage of hydrogen and the nature (exothermic or endothermic) of the storage process in the following reaction:
$2Al + 3H_2 \to 2AlH_3$
(molar masses of aluminum and hydrogen are 27 g/mol and 2 g/mol, respectively. The formation enthalpy $AlH_3$ is -10.9 kJ/mole). (1 + 2 + 1 marks)

7 highlight the importance of electronegativity in determining the nature of the sorption process for hydrogen storage determine the weight percentage of hydrogen and the nature exothermic o 01262

Added by David B.

Chemistry: Structure and Properties

Nivaldo Tro 2nd Edition

Instant Answer

Solved by Expert Susan Hallstrom

02/18/2023

Step 1

The molar mass of $AlH_3$ is $27 + 3(1) = 30$ g/mol. The weight percentage of hydrogen in $AlH_3$ is given by: $\frac{3 \times 1}{30} \times 100 = 10\%$ Show more…

Show all steps

Thanks for your feedback!

7. Highlight the importance of electronegativity in determining the nature of the sorption process for hydrogen storage. Determine the weight percentage of hydrogen and the nature (exothermic or endothermic) of the storage process in the following reaction: $2Al + 3H_2 \to 2AlH_3$ (molar masses of aluminum and hydrogen are 27 g/mol and 2 g/mol, respectively. The formation enthalpy $AlH_3$ is -10.9 kJ/mole). (1 + 2 + 1 marks)