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Give the bond angle and describe the shape around the central atom designated in this molecule. O in HO of H3PO4 (no H-P bond) a. trigonal planar; 120° b. trigonal planar; <120° c. bent; <109.5° d. tetrahedral; 109.5° e. none of these
What is the maximum concentration, in mol/L and mg/L, of Cu^2+ and Zn^2+ in a solution that contains both ions if the pH is (a) 10.00, (b) 11.00, (c) 12.00
Which of the following molecular geometries could lead to linear molecule after removal of one atom?
What is the pH of a solution containing 50.00 mL of 1.0 M HCl and 50.00 mL of 1.0 NH3? The Kb for NH3 = 1.8 x 10-5.
What is the molarity of a solution prepared by dissolving 72.0 g of HCI in enough water to make 500 ml of solution.
Calculate the total concentration of lead dissolved ([Pb]total) in a solution saturated with PbI2(s) and containing dissolved I- with a concentration of [I-] = 0.294 M. The solubility of lead is governed by the reactions shown below.
What happened when 6.0M HCl was added to the contents of the tube in 7a above?
What would be the effect on the results of mistakenly adding 2.43 x 10^-3g Mg to 4.0mL of 0.1M HCl, rather than to 4.0mL of 1.0M HCl as instructed
The age of a rock was was estimated using 238U radiometric dating. The ratio of 238U to 206Pb (238U decays to 206Pb) was approximately equal to 1. If the half-life of 238U is 4.5 billion y, and if it is assumed there was no 206Pb initially, how ol..
calculate the ph of a 0.070 M sodium acetate CH3COONa and 0.020M acetic acid CH3COOH buffer The ka is 1.7x10^-5
Evaluate the change in z (i.e., z) in going from the point (0,0) to the point (1,1) for the differentials: (1) dz = (x^2 + y^2) dx + xy dy and (2) dz = xy dx + xy dy
Consider following cell. SCE stands for the saturated calomel reference electrode, which has a fixed potential of 0.244 volt. Pt|VOSO4 (0.0184 M), V2(SO4)3 (0.212 M), HClO4 (0.0100 M) || SCE Calculate the cell potential.
What is the net ionic equation for this reaction occurring in water: Potassium sulfate and barium chloride are mixed to form potassium
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