1. El ácido láctico monoprótico \( \mathrm{HC}_{3} \mathrm{H}_{5} \mathrm{O}_{3} \), se encuentra en la leche agria, donde es producido por la acción de lactobacilos sobre la lactosa (el azúcar de la leche). Una disolución \( 0,025 \mathrm{M} \) de ácido láctico tiene un pH igual a 2,75 . a. Determine el grado de ionización del ácido láctico. b. Calcule la Ka del ácido láctico.

Please select polar molecule(s) from the following. NH3 BF3 PF5 PF3

Please select polar molecule(s) from the following. \( \square \mathrm{CCl} 4 \) \( \square \mathrm{CHCl} 3 \) \( \square \mathrm{CO} 3 \) CO 2

Please select the molecule(s) with resonance structures from the following. CCl 4 CHCl 3 SO 3 H 2 O None

There are different types of food coloring available in most grocery stores- one that is water-based, and one that is oil-based. The oil-based food coloring works best in chocolates, in fry-oil to color fried foods, and in food with high butter contents. Based off of this information and knowing that substances of like polarity mix readily with one another, which food coloring is more polar (water-based or oil-based)? Which food coloring is less polar (or even nonpolar)? Water-based [Choose ]

Please select the molecule(s) that 1) its molecular shape is different from its electron group shape, and/or 2) the central bonds are not identical. NH3 BF3 PFF PF3