Answer:
Mass = 10.1 g
Explanation:
Given data:
Mass of Fe₂O₃ produced = ?
Mass of iron rust = 12.0 g
Solution:
Chemical equation:
4Fe + 3O₂ → 2Fe₂O₃
Number of moles of iron:
Number of moles = mass/ molar mass
Number of moles = 12.0 g/ 55.85 g/mol
Number of moles = 0.215 mol
Now we will compare the moles of iron and Fe₂O₃ .
Fe : Fe₂O₃
4 : 2
0.215 : 2/4×0.125 = 0.063 mol
Mass of Fe₂O₃ :
Mass = number of moles × molar mass
Mass = 0.063 mol × 159.7 g/mol
Mass = 10.1 g
The total pressure of the flask is sum of partial pressures of the gases present in a mixture of gas
This is Dalton's law of partial pressures .'
say we have a mixture of "n" gases with respective pressure : P1, P2 ...Pn
total pressure of the gases = P1 +P2 + P3 + ...Pn = Ptotal
So in the given problem the total pressure of flask will be = 0.72+1.65 = 2.37 atm
Answer:
Yes, it will.
Explanation:
The friction of the surface will tug at the book and lower it's velocity, causing it to slow down.
Answer:
D
Explanation:
I explained how to do it on your other problem so look there :)