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EDTA forms strong complexes with most metal ions except those in Group 1A. What information could be obtained if the method of this experiment was used with a solution containinga). K+ and Cu2+ ionsb). Ca2+ and Mg2+ ionsc). Na+ and K+ ions
What is the minimum volume of 4.5M {\rm HCl} required to completely dissolve 16.0g of magnesium metal
Calculate the number of pounds of CO2 released into the atmosphere when a 18.0-gallon tank of gasoline is burned in an automobile engine.
Gases diffuse faster compared to liquids because of the reason that the liquid molecules A. are held together by stronger inter-molecular forces.
zinc metal reacts with yellow crystals of sulfur in a fiery reaction to produce a white powder of zinc sulfide. a
A buffer is prepared by adding 1.50X 10^2 ml of 0.250 M NaOH to 2.50X10^2 ml of 0.350 M weak acid, HB. The solution is diluted to 1.00 L. If the pH of the resulting solution is 6.55, what is the pKa of the weak acid
Many household cleaning products contain oxalic acid, H2C2O4, a diprotic acid with the following dissociation constants: ka1= 5.9*10^-2, ka2=6.4*106-5 Calculate the equilibrium concentration of HC2O4^- in a 0.20 M solution of oxalic acid.
How long would it take for 1.50 of water at 100.0 to be converted completely into steam if heat were added at a constant rate of 18.0
One model of the hydrogen atom relies upon the idea that the electrons reside in stable orbits from which they can not deviate and are found outside of a small, densely packed group of protons. This model was created by
How many kilojoules of thermal energy are released by the reaction of 3.41 g Al with excess oxygen? 2Al(s) + 3/2O2(g) --> Al2O3(s) delta H rnx = -1675.7 kJ
What volume of Maker's Mark was consumed if the individual was drinking Maker's Mark (130 proof),?
What is the mass (in grams) of the precipitate when 7.1 g of iron(III) chloride reacts in solution with excess sodium phosphate
To learn how to calculate the solubility from Ksp and vice versa. Consider the following equilibrium between a solid salt and its dissolved form (ions) in a saturated solution:
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