A water sample contains 118mgl of bicarbonate ion 19mgl of
A water sample contains 118mg/L of bicarbonate ion, 19mg/L of carbonate ion, and has a pH of 9.5. What is the alkalinity of this water expressed as mg/L of CaCO3? Answer: 130mg/L as CaCO3.
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Sharpe Products has 1 million outstanding shares and 9 directors to be elected. Cumulonimbus Holdings owns 175,000 shares of Sharpe. How many directors can Cumulonimbus elect with cumulative voting?
a 500-turn toroid of square cross section has an inner radius of 10cm and an outer radius of 15cm. The relative permeability of the core is 1000. For a current of 10A in the coil, calculate(a) the energy density, (b)the stored energy
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An airtight container having a lid with negligible mass and an area of 101 cm2 is partially evacuated. what is the air pressure in the container before it is opened
A solution contains 2.0*10^-3 M Pb^2+ and 1.0*10^-4 M Cu^+. I^- is added to the solution little by little, will CuI (Ksp=1.0*10^-12) or PbI2 (Ksp=7.9*10^-9) precipitate first? Determine the concentration of I^- required to commence precipitation o
A uniform disk has a mass of 3.7 kg and a radius of 0.40 m. The disk is mounted on frictionless bearing and is used as a turntable. What is the final angular momentum of the system
How many atoms are there in a cubic centimeter of a solid and what is the velocity of the motorist relative to the police car and what is the velocity of the police car relative to the motorist?
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Identify the structure and function of the urinary system. Identify the structure and function of the renal corpuscle.
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