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6.3072 g >>molarity = moles of solute/volume of solution (in litres) 0.45 m = n/0.4 l n = 0.45 m × 0.4 l = 0.18 mol you need 0.18 mol of nh_4oh molar mass of nh_4oh is 35.04 g/mol mass of solute = 0.18 cancelmol × 35.04 g/cancelmol = 6.3072 g Underbrace (ch_3cocooh)_color (red) (pyruvic acid) + hcn →. The acid in excess is then titrated with n aoh (aq) of known concentration.we can thus get back to the concentration or molar quantity of m (oh)2.as it stands the question (and answer) are hypothetical.
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So this is a propanol derivative > (a) with hcn the hcn adds across the α c=o group to form a cyanohydrin Both names seem to be unambiguous.
Oh− (aq) + h3o+ (aq) → 2h2o(l) so you can say that when you mix these two solutions, the hydronium cations present in the hydrochloric acid solution will be the limiting reagent, i.e
They will be completely consumed by the reaction. If naoh is added, then we have increased the concentration of hydroxide ions No, the oh group in phenol is by definition at c1 > the structure of phenol is you can draw the structure like this
It is phenol because the ring carbon attached to the oh group is now c1 The oh carbon can be on any carbon atom of the ring, and the compound is still phenol,