How do you calculate the concentration of hydronium ion
How do you calculate the concentration(molarity) of hydronium ion in a solution made by dissolving 1.90gof hydrogen chloride in enough water to make 0.642L of solution?and how do you calculate the pH and concentration of hydroxide in the solution?
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A 100 mL sample of hard water is titrated with the EDTA solutionin problem 2. The same amount of Mg2+ is added,, and the volume of EDTA required is 22.51 mL.
The average number of articles produced by 2 machines per day is 200 and 250 with standard deviation 20 and 25 respectively on the basis of records of 25 days production. Can u regard both the machines equally efficient at 1 percentage level of s
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The 20 kg pulley has a radius of gyration of 160 mm. if B has a mass of 10 kg, determine the angular acceleration oof the pulley and the tesion in the cable connected to B.
A buffer is prepared by mixing 185 mL of 0.439 M NaOH with 855 mLof 0.869 M sodium bicarbonate (NaHCO3). Given that theKa1 of H2CO3 is 4.5 x10-7 and the Ka2 is 4.7 x 10-11,calculate the pH of the solution.
A rifle with a weight of 30 N fires a 5.0 g bullet with a speed of 300 m/s. (a) Find the recoil speed of the rifle. (b) If a 700 N man holds the rifle firmly against his shoulder, find the recoil speed of the man and the rifle.
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