How much sodium phosphate in grams should be added
A hard water solution contains 48.0g calcium chloride. How much sodium phosphate in grams should be added to the solution to completely precipitate out all of the calcium?
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You take a 30 ml sample of pond water and test it with yoursampling kit. You find that the water contains 20 ppm ofphosphates. You weight the sample and find that its mass is31 g. What is the mass of the phosphate in your sample?
The French TGV train and Japanese "bullet train" reach speeds of up to 180 mph with wheels moving on tracks about 1.5 m apart. At top speed moving perpendicular to the earth's magnetic field, what potential difference is induced across the tracks
Estimate the amount of the drug in the body 7 hours after the initial dose. What percentage of the drug still in the body is eliminated each hour?
An electron moves in a circular path perpendicular to a constant magnetic field of magnitude 1.00 mT. The angular momentum of the electron about the center of the circle is 4.00 m kg m2/s. Determine (a) the radius of the circular path and (b) the
In a right triangle the length of a leg is 10, and the angle between that leg and the hypotnuse is 40°. Find the length of the hypotnuse and the other leg.
An electron moves in a circular path perpendicular to a constant magnetic field of magnitude 1.00 mT. The angular momentum of the electron about the center of the circle is 4.00 kg m2/s. Determine (a) the radius of the circular path and (b) the spe
If you were to construct a galvanic cell for the purposes of studying this reaction, what is the standard cell potential(E°) that you would measure?
A 7.80-g bullet moving at 630 m/s penetrates a tree trunk to a depth of 6.00 cm. a) Use work and energy considerations to find the average frictional force that stops the bullet. b) Assuming the frictional force is constant, determine how much tim
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A 2-year-old girl is evaluated for cough, runny nose, watery eyes, and fevers for a week. She also developed a diffuse rash,
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