The solution for this problem would be:
The mass of P4O10 is computed by: 0.800 mol x 284 g/mol = 227g t = 15.0 s ( 1 min / 60 s) = 0.25 min
So solving for the rate will be mass over t = m/t = 227/0.25 = 908 g/min would be the answer for this problem.
Answer:
The correct answer is option E.
Explanation:
The Gibbs free energy is given by expression:
ΔG = ΔH - TΔS
ΔH = Enthalpy change of the reaction
T = Temperature of the reaction
ΔS = Entropy change
We have :
ΔH = -720.5 kJ/mol = -720500 J/mol (1 kJ = 1000 J)
ΔS = -263.7 J/K
T = 141.0°C = 414.15 K
The Gibb's free energy of the given reaction at 141.0°C is -611.3 kJ/mol.
The conversion factor is 760 mmHg/atm.
3.1 atm * 760 mmHg/atm = 2356 m
Answer:
The correct answers are "bulb or pump; meniscus; outside".
Explanation:
Pipets are one of the most used devices in any laboratory. These apparatus are useful to transfer liquid solutions from one container to another. The first step is to place a bulb or pump to the top in order to remove all the content of the pipet. Second, fill the pipet such that the meniscus (the curved surface of the liquid) is even with the volume line according to the desired volume to be transferred. Third, release the liquid into the second container and release the last drop outside the pipet tip.
