What is the mass of hcl in the sample used
A student titrates 25.0 mL of HCl using a standard solution of 0.250 M NaOH. What is the molarity of the HCl solution is it takes 35.0 mL of NaOH to reach the titration endpoint? What is the mass of HCl in the sample used?
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An alpha particle (q = +2e, m = 4.00 u) travels in a circular path of radius 4.50 cm in a uniform magnetic field with B = 1.80 T. Calculate its kinetic energy in electron-volts.
Here are the enthalpy changes when one mole of HCl gas is added to various moles of water: -16.608 Kcal for 10 mol, -17.272 Kcal for 25 mol, -17.453 Kcal for 40 mol, -17.735 Kcal for 200 mol, -17.960 for infinte mol.
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Earth's magnetic field (60.0 µT) is directed toward the north and is inclined downward at 66° to the horizontal. Find the magnitude and direction of the magnetic force on 110 m of the conductor due to Earth's field.
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As Brian is leaving for college, his parents give him a car, but warn him that they would take the car away if he gets 6 speeding tickets. Suppose that Brian receives speeding tickets according to Poisson process with the average rate of one ticke
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