Answer:
Taking into account the reaction stoichiometry, the correct answer is option B): 9 grams of aluminum are necessary to produce 0.50 mol of hydrogen gas at 25°C and 1.0 atm.
Explanation:
The balanced reaccion is:
6 HCl + 2 Al → 2 AlCl₃ + 3 H₂
By reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of moles of each compound participate in the reaction:
HCl: 6 moles
Al: 2 moles
AlCl₃: 2 moles
H₂: 3 moles
The atomic mass of aluminum is 27 g/mole. Then, by reaction stoichiometry, the following mass quantity of aluminum participates in the reaction:
Then you can apply the following rule of three: if by reaction stoichiometry 3 moles of H₂ are formed from 54 grams of Al, 0.50 moles of H₂ are formed from how much mass of Al?
mass of Al= 9 grams
In summary, the correct answer is option B): 9 grams of aluminum are necessary to produce 0.50 mol of hydrogen gas at 25°C and 1.0 atm
To be able to answer this I must see the text and what part A (the roaring twenties) has to do with this question
Since I cannot help much I will give some tips
*look at part a and conclude why this question relates to (I assume part b)
*find the two details that make no sense (you can eliminate those)
*reread the question and your remaining answers
*reread part A and pick the best answer out of the two remaining choices
-gold luck sorry I couldn’t help much
Explanation:
convergence of business and consumer culture
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Explanation:
Answer:
He is likely able to strike out 15 people cause 10 divided by 4 is 2.5 so if you do 2.5 times 6 you get 15
Explanation: