A balloon that can hold 85 L of air is inflated with 3.5 moles of gas at a pressure of 1.0 atmosphere. What is the temperature o
1 answer:
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Answer:
Explanation:
<u>Given:</u>
Distance = S = 50 m
Time = t = 10 secs
<u>Unknown:</u>
Speed = v = ?
<u>Formula:</u>
v = S/t
<u>Plug In:</u>
S = 50 m , t = 10 secs
<u>Solution:</u>
v = 50 m / 10 secs
v = 5 m/s
Hope this helped!
<h2>~AnonymousHelper1807</h2>
Answer:
0.33 moles of aluminum are necessary to produce 11 L of hydrogen gas at STP.
Explanation:
The STP conditions refer to the standard temperature and pressure. Pressure values at 1 atmosphere and temperature at 0 ° C are used and are reference values for gases. And in these conditions 1 mole of any gas occupies an approximate volume of 22.4 liters.
You can apply the following rule of three: if by STP conditions, 22.4 L represents 1 mole of hydrogen, 11 L how many moles will they be?
amount of moles of hydrogen= 0.491 moles
On the other side, the balanced reaction is:
2 AI + 6 HCI → 2 AICI₃ + 3 H₂
By reaction stoichiometry, the following amounts of moles of each compound participate in the reaction:
- AI: 2 moles
- HCI: 6 moles
- AICI₃: 2 moles
- H₂: 3 moles
Then you can apply the following rule of three: if 3 moles of hydrogen are produced by 2 moles of aluminum, 0.491 moles of hydrogen are produced by how many moles of aluminum?
amount of moles of aluminum= 0.33 moles
<u><em>0.33 moles of aluminum are necessary to produce 11 L of hydrogen gas at STP.</em></u>