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
What is the minimum amount of fuel that must be consumed per piston each cycle? What is the power output (in kW and hp) of the engine at its rated speed of 5900 RPM?
They each hear a frequency greater than the 512.0Hz as the fork moves towards them; the difference in the frequencies they hear is 6.84Hz. Determine their respective distances below the overpass. The speed of sound is 342m/s.
To get the boat moving, you throw the stones rearward, either in succession or together, but in each case with a certain speed 15.000 m/s relative to the boat. a.) What is the resulting speed of the boat if you throw the stones simultaneously?
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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