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Problem- What is the maximum pH of a solution .10M in Mg+2 from which Mg(OH)2 will not precipitate? pKsp for Mg(OH)2 is 10.92.
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What is the pH of the solution when 50 grams of Ca(OH)2 was added to 1 liter of water? Ksp of Ca(OH)2 = 6.5 x 10^-6
What would be a beneficial way to study and memorize all chemistry based conversions
Problem- The equation of line determined from a Beer's Law plot is y = 0.195x + 0.4. What is the concentration of an unknown water sample if the assumed resistance is 650 ohms
how many possible trisubstituted derivatives c6h3x2y can be obtained from the meta disubstituted benzene c6h4x2? (ignore directive effects of the substituents x and assume that all positions on the ring are accessible to the reagent y+).
A solution is made witmlh 20.2ml of CH3OH ( density= 0.782g/ml), dissolved in 100.ml of water (density = 1.00 g/ml). Calculate the concentration in the units of:
Suppose that 0.680 mol IBr in a 2.50-L flask is allowed to reach equilibrium at 150.°C. What are the equilibrium concentrations of IBr, I2, and Br2? [Br2] ?? M [I2] ?? M [IBr] ?? M
What is the molarity of a solution prepared by dissolving 72.0 g of HCI in enough water to make 500 ml of solution.
q1. using the ice table calculate the ph of a solution that contains 0.0075 m lactic acid and 0.085 m sodium
For each of the following processes, decide whether it is spontaneous or non-spontaneous.
How many grams of ammonium chloride (pKa=9.24, 58.491 g/mol) should be added to 500 mL of 0.1060 M ammonia to make a buffer with pH=8.5 (to three s.f.)
Question- A motor vehicle maintenance center wants to improve its services by using database management systems (DBMS) and data mining. What tables are needed in such a database and how can it help improve their services
1 positronium consists of an electron and a positron same mass as electron but opposite chargeorbiting around their
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