How do you solve for the concentration for D? Calculate the value of the equilibrium concentrations for the unknown species for each of the reactions below.
Reaction 1:
A(aq) + B(s) \leftrightharpoons 2C(aq) + D(aq) K = 2.0 x 10^{-6}
[A] = 4.5 × 10^{–4} M
[C] = 1.2 x 10^{-2} M
[D] =

Achemistry student weighs out 0.306 g of citric acid (h3c6h5o7), a triprotic acid, into a 250 ml volumetric flask and dilutes to the mark with distilled water. he plans to titrate the acid with 0.1000 m naoh solution. calculate the volume of naoh solution the student will need to add to reach the final equivalence point. be sure your answer has the correct number of significant digits.

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While in europe, if you drive 125 km per day, how much money would you spend on gas in one week if gas costs 1.10 euros per liter and your car’s gas mileage is 32.0 mi/gal? assume that 1 euro=1.26 dollars