- Weather prediction devices?

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The Ka of a monoprotic weak acid is 8.34 × 10-3. What is the percent ionization of a 0.196 M solution of this acid? Let f(x) be a function satisfying f'(X)=f(x) and f(0)=2 then ∫f(X)/3+4f(x) dx is? Under what circumstance only one medial moraine is formed by three or more merging glaciers? Why there have to be capacitors at Mosfet gate, what if gate is connected to pulsing voltage source (like function generator) with no caps? A 500 mL sample of water is found to contain 0.02 g of Pb. What is the concentration of Pb in the solution?