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How many grams of magnesium hydroxide are present in 1.0 L of a saturated solution at room temperature?
Explain the difference in acidity between p-cyanoanilinium ion and anilinium ion with words and structures.
Liquid helium at 4.2 K has a density of 0.147 g/mL. Suppose that a 1.00-L metal bottle that contains air at 98K and 2.0 atm pressure is sealed off. If we inject 60.0 mL of liquid helium and allow the entire system to warm to room temperature
Compounds like CCl2F2 are known as CFCs and were once widely used as refrigerants. Breaking down of these molecules in the atmosphere releases Cl atoms
Some water was added to the initial reaction mixture of 5mL water, 5.55g sodium bromide and 5 mL butanol in the procedure that was perfromed to obtain 1-bromobutane from 1-butanol.
A 2.154-g sample of HgO produces 125 mL of oxygen collected over water at 24 degrees C and an atmospheric pressure of 763 mm Hg. Calculate the STP molar volume for oxygen.
Europium (Europium is a chemical element with the symbol Eu and atomic number 63 )crystallizes in a body-centered cubic lattice compute the unitcell edge length in pm if The density of Eu is 5.26 g/cm3..
a solid acid is dissolved in enough water to make 200 ml of a solution. 40 ml of the solution is titrated to a phenolphthalein end point with an NaOH solution.
What is the FORMULA for the limiting reagent? What is the maximum amount of carbon dioxide that can be formed in grams? What amount of the excess reagent remains after the reaction is complete in grams?
A coffee can (with diameter of 6.0 inches, a height of 6.5 inches and a massof 256 g) has a 1 cm diameter hole drilled in the bottom of the can and another drilled in the side. The can is capped, inverted, and completely filled with methane
Calculate the pressure in the flask in atmospheres and torr also If the sealed-tube manometer in had a height difference of 20.0 inches between the Hg levels?
Find the partial pressure of each produce and the total pressure in the flask at the end of the reaction.
The dried precipitate weighs 10.3g. Calculate the amunt of MgCl2 in the original sample (in weight percent).
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