Cuando se trata Ca3P2 con agua, los productos son Ca(OH)2 y PH3. Calcular el peso máximo obtenido al reaccionar 2 g de Ca3P2 con
1 answer:
Answer:
0.629 gramos de PH3 es la máxima de cantidad que puede ser producida.
Explanation:
¡Hola!
En este caso, dado que tenemos la siguiente reacción química, la cual se puede balancear directamente:
Podemos calcular la masa máxima de cualquier producto, digamos PH3, al comparar la masa de este, que 2 g the Ca3P2 y 1 g de H2O producen por separado y de acuerdo a la estequiometría:
De este modo, infermos que solamente 0.629 gramos the PH3 pueden ser obtenidos al ser el agua el reactivo límite.
¡Saludos!
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The question is incomplete, here is the complete question:
A chemistry student needs 75 g of thiophene foran experiment. He has available 0.50 kg of a 29.3% w/w solution of thiophene in carbon tetrachloride.
Calculate the mass of solution the student should use. If there's not enough solution, press the "No solution" button.
<u>Answer:</u> The mass of solution the student should use is 255.97 grams
<u>Explanation:</u>
We are given:
Mass of thiophene needed = 75 gram
29.3 % w/w thiophene solution
This means that 29.3 grams of thiophene is present in 100 grams of solution
Applying unitary method:
If 29.3 grams of thiophene is present in 100 grams of solution
So, 75 grams of thiophene will be present in =
Given amount of solution = 0.50 kg = 500 grams (Conversion factor: 1 kg = 1000 g)
Hence, the mass of solution the student should use is 255.97 grams
Answer:
739.8 mmHg
Explanation:
By Dalton's Law of Partial Pressures, the total pressure of a gas mixture is the sum of the partial pressure of its components. The partial pressure is the pressure that the substance would have if it was alone in the same conditions of the mixture (same temperature and volume). So:
757.3 = 17.5 +
= 757.3 - 17.5
= 739.8 mmHg