Questions asked
A solution is prepared in which 0.00100 mol of Ni(NO3)2 and 0.500 mol of NH are dissolved ina total volume of 1.00 L. What is the concentration of Ni(HO)62* ions in the solution atequilibrium?
A solution is prepared in which 0.0100 mol of Ni(NO3) and 1.00 mol of NH are dissolved in a total volume of 1.00 L. What is the concentration of Ni(H,O)6 2+ ions in the solution at equilibrium?
calculate the cell potential of Zn/Zn2+(0.1M)//Co2+(5.87*10-4M)/Co
Calculate the potential of a copper electrode immersed in 0.035M in NaOH and saturated with Cu(OH)2.
Calculate the potential of a copper electrode immersed in 0.065M in NaCl and saturated with CuCl.
Calculate the potential of a copper electrode immersed in 0.038 M Cu(NO3)2
è¨f(x)=（x-1)^7 ex，試求f^(20)（1)
A titration of 25 ml of 0.1 H2C2O4(Ka1 = 6.21*10-5; Ka2 = 2.3*10-6) with0.1 M NaOH. Calculate the pH values of the mixture with (a) 5ml, (b) 25ml, and(c) 50ml of NaOH, respectively.
Calculate the solubilities of BaSO4(Ksp = 1.1*10-10) the following compounds in a 0.02 M solution of Mg(ClO4)2 using (1) activities and (2) molar concentrations: