Table 15C.2 lonic radii, r/pm* Na* 102(6*), 116(8) K* 138(6), 151(8) F 128(2), 131(4) 181 (close packing) * This scale is based on a value 140 pm for the radius of the 0² ion. More values are given in the Resource section. * Coordination number.
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Estimate the diffusion coefficients and the effective hydrodynamic radii of the alkali metal cations in water from their mobilities at 25 °C (refer to the Resource section for values of the mobilities). Estimate the approximate number of water molecules that are dragged along by the cations. Ionic radii are given Table 15C.2.
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- Use the following atomic masses (in g/mol): K = 39.1; Mn = 54.94; O = 16; H = 1; P = 30.97; C = 12.01; Na = 23; Mg = 24.31; S = 32.06; Zn = 65.38; Cu = 63.55 Given the reaction: CH3COOH + NaOH -> CH3COONa + H2O, how many milligrams of CH3COOH is equivalent to 1mL of 1N NaOH?The following questions refer to the following system: 500.0 mL of 0.020 M Mn(NO3)2 are mixed with 1.0 L of 1.0 M Na2C2O4. The oxalate ion, C2O4, acts as a ligand to form a complex ion with the Mn2+ ion with a coordination number of two. Mn2+ + C2O4 2– MnC2O4 K1 = 7.9 x 10^3 [Mn(C2O4)2] 2– MnC2O4 + C2O4 2– K2 = 1.26 x10^–2 Find the equilibrium concentration of the [Mn(C2O4)2]2– ion.Potentially Useful Information Spectrochemical Series: | < Br < SCN < Cl° < NO3¯< F° < OH° < C2O4²- ~ H2O < NCS < NH3 < en < PPH3 A student synthesizes and isolates the following coordination compound [Ni(H2NCH2CH2NH2)3]Cl2 (molar mass = 309.8966 g/mol) according to the balanced reaction below. In the experiment, the student reacts 2.500 g of nickel (II) chloride hexahydrate (molar mass = 237.6878 g/mol) with 4.000 g of ethylenediamine (molar mass = 60.0992 g/mol). After isolating the product, the student collects 3.200 g of the nickel coordination compound. NICI2•6H2O (aq) + 3H2NCH2CH2NH2 (1) → [Ni(H2NCH2CH2NH2)3]Cl2 (s) + 6H2O (1) Given the transition metal compound, Na4[Co(C204) (CN)4], what is the oxidation state of cobalt, as well as the coordination number of cobalt in this compound? This compound is soluble in water. The oxidation state of cobalt is Cobalt has a coordination number of Your answer should be an integer.
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