Calcule la molaridad a. 14g de etanol C2HC6O en 400mL de solucion
b. 0.2 moles de HNO3 en 500mL de solucion
c. cuantos g de soluto hay en una solucion de 0.4L de KOH 0.25M?
d. cuantos L de solucion se requieren para preparar una solucion 1M con 0.5 moles de H2SO4

did you fail the test? xd

the circled areas are referred to   as sunspots.   the sunspots are cooler than the   surrounding area.

sunspots are temporary phenomena on the photosphere of the sun that appear visibly as dark spots compared to surrounding regions. they correspond to concentrations of magnetic field flux that inhibit convection and result in reduced surface temperature compared to the surrounding photosphere.

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