En realidad es de fisica resuelve estos 3 ejercicios poniendo datos operacion y resultado 1. cierto volumen de un gas se encuentra a una presion de 970 mmhg cuando su temperatura es de 25.0°c¿a que temperatura deberia de estar para que su presion sea 760 mmhg?
2.el gas confinado en un tanque de buceo, se encuentra a la presion manometrica de 2.21 atmosferas a la temperatura ambiente de 30°c¿que temperatura adquiere si se le somete a una presion manometrica de 3.1 atmosferas?
3.una cantidad de gas esta contenida en un recipiente a -10°c y 750 mmhg de presion. si el gas se calienta a 35°c¿cual seria la nueva presion si no varia el volumen?

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Answerthis solution will not form a precipitateexplanationsolubility equilbrium:         pbf₂(s)  ⇄ pb²⁺(aq) + 2 f⁻(aq)the solubility product expression is    (we exclude solids from the equilibrium expression).now suppose we have the trial ion product q, which we can define as    then, we can interpret  q as the product of the concentration of the ions that we have and ksp as the product of the ion concentrations that are needed to form a saturated solution.if q > ksp, then that implies that there will be a surplus of ions that exceed the amount that is required to form a saturated solution. a precipitate will then form (the precipitate continually  forms until the surplus ions are removed and q is decreased to ksp's value).if q = ksp, the saturated solution that forms is barely saturated and the precipitate will be minimal.if q < ksp, then the ion concentration will not be enough to form a saturated solution (so no precipitate).using our information, we calculate the trial ion product:     since q = 2.7  × 10⁻⁸ < ksp =  4  ×  10⁻⁸, a precipitate will not form.