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.
What magnetic field is necessary perpendicular to both the electron path and the electric field so that the electron travels in a straight line?
If the alarm goes off and a person is refused admission, what is the probability that the person was really authorized?
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.
What is the maximum (threshold) wavelength of the gamma-ray in nm (nanometers) in 207Pb(gamma,n) reaction, that will permit the reaction to occur?
Using only these numbers together with the values of the speed of light and the electron charge, do the following. (a) Find the work function of potassium
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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