Explain the molarity of the sodium carbonate solution
What was the molarity of the sodium carbonate solution when a 447 cm3 volume of Na2CO3 solution was warmed with an excess of sulfuric acid until all the action ceased. A 5.0 L volume of dry CO2 gas measured at STP was given off and collected.
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Suppose the skillet is cooled to room temperature, 21*C. An iron skillet weighing 1.78 kg is heated on a stove to 165*C. Explain how much heat energy (in joules) must be removed to effect this cooling when the specific heat of iron is 0.449 J/(g&
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The birth control shot is one of most effective methods of birth control available, and it works best when you get the shot regularly, every 12 weeks.
Suppose a device of this sort is inserted in a stream of nitrogen, the current through the heating oil is adjusted until the wattmeter reads 1.25 kW, and the stream temperature goes from 30 Celsius and 110 kPa before the heater to34 Celsius and 11
What was the molarity of the sodium carbonate solution when a 447 cm3 volume of Na2CO3 solution was warmed with an excess of sulfuric acid until all the action ceased. A 5.0 L volume of dry CO2 gas measured at STP was given off and collecte
Determine the amount of heat required to raise the 10.0 grams of ice from the -50 degrees C to 0.0 degrees C when the specific heat of ice is 2.1 J/g-K.
Approximately 1 atom of U-235 is present for each 140 atoms of uranium in the substance called pitchblende. If 84.8% of pitchblende is uranium (by mass), find how many grams of U-235 are in each 1 kg of pitchblende.
An electron is free from rest at the point midway among the two charges, and it moves all along the line joining the two charges. Determine the speed of the electron if it is 10.0 from charge 1?
Four uniform spheres, having masses mA = 600 kg, mB = 550 kg, mC = 1800 kg, and mD = 400 kg, encompass (x, y) coordinates of (0, 50 cm), (0, 0), (-80 cm, 0), and (40 cm, 0), correspondingly. Find out the total gravitational force on sphere B due t
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