A solution contains 5.43x10~³ M silver acetate and 1.22×10-² M zinc nitrate. Solid sodium carbonate is added slowly to this mixture. What is the concentration of zinc ion when silver ion begins to precipitate? [Zn?*] ={ M %3D
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- 1. Calculate Z and V for ethylene at 25°C and 12 bar by the following equations: The truncated virial equation with the following experimental values of virial coefficients: B = −140 cm 3 ・mol−1, C = 7200 cm6 ・mol−2 ?=1 + B/V + C/V2 The truncated virial equation, Z = 1 + BP/RT with a value of B from the generalized Pitzer correlation for the second virial coefficient. The Redlich/Kwong equation The Soave/Redlich/Kwong equation The Peng/Robinson equationA metal ore consist of element X and Y with relative aboundance in volume of 20% and 80% respectively. If the densities of X and Y are respectively 6.5 and 4.5 what is the densities of the metal ore?A sample of pure sodium has a mass of 17.4 g. Calculate the number of moles in the sample and sodium atoms in the sample. HINT (a) moles in the sample moles (b) sodium atoms in the sample atoms
- Two large tanks, each holding 100L of liquid, are interconnected by pipes, with the liquid flowing from tank A into tank B at a rate of 3L/min and from B into A at a rate of 1L/min. The liquid inside each tank is kept well stirred. A brine solution with a concentration of 0.1kg/L of salt flows into tank A at a rate of 6L/min. The (diluted) solution flows out of the system from tank A at 4L/min and from tank B at 2L/min. If initially, tank A contains pure water and tank B contains 10kg of salt, determine the mass of salt in each tank at time t≥0. What is the solution to the system? x(t)= y(t)=helpA composite material contains 15% TiC, 10% Co, 20% TaC and 55% WC. The densities of the components are given as Pric = 4.9 gcm³, pco = 8.9 gcm³, PTac = 14.5 gcm³, Pwc = 15.8 gcm³³. Estimate the density of the composite.
- A sample of pure sodium has a mass of 15.7 g. Calculate the number of moles in the sample and sodium atoms in the sample. HINT (a) moles in the sample moles (b) sodium atoms in the sample atomsOne component of a metal sculpture consists of a solid cube with an edge of length 36.9 cm. The alloy used to make the cube has a density of 6610 kg/m³. Find the cube's mass. m = kgHelp me please