What is the final concentration of sodium ion
when 230 ml of water is added to a stock solution of 2.5M 420.0 ml Na3PO4. what is the final concentration of Na+?
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Next, the circle is vertical. In the vertical case the maximum tension in the string is 18.0% larger than the tension that exists when the circle is horizontal. Determine the speed of the stone.
What would Adam Smith say to a farmer or manufacturer who wanted to institute tariffs or quotas to limit the number of cheaper imports entering the country or minimize competition?
The density of palladium at 20°C is 12.0 g/mL and at 1550°C the density is 11.0 g/mL. What is the change in volume (in mL) of 4.21 kg Pd in going from 20°C to 1550°C?
A railroad car of mass 2.8 104 kg moving at 2.50 m/s collides and couples with two coupled railroad cars, each of the same mass as the single car and moving in the same direction at 1.20 m/s. (a) What is the speed of the three coupled cars after t
A 55.0 kg person jumps from rest off a 8.0 m high tower straight down into the water. Neglect air resistance during the descent. She comes to rest 3.00 m under the surface of the water. Determine the average force that the water exerts on the dive
To reach the end point in the titration a total volume of 14.71mL of base was needed. What is the mass percent of benzoic and gallic acid?
A 100 g sample of an unknown liquid absorbs 2000 J of heat energy, raising the liquid's temperature from 50 ? C to 70 ? C . What is the speci?c heat capacity of this liquid? No phase change took place.
The disadvantages of working with someone different from themselves. Which would be hardest you and why?
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