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The compound MgSO4 is called Epsom salts. How many grams will you need to prepare a bath containing 5.80 moles of Epsom salts?Express your answer using three significant figures.
A substance containing 28.84% Nitrogen, 0.0648g Hydrogen, and Oxygen and Carbon, with (total) mass (of the substance) 1.2953, is burned in excess oxygen to produce 2.241 grams of carbon dioxide.
When 1.543 g of copper(II) sulfate pentahydrate is heated to drive off the water of hydration, how many grams of copper(II) sulfate and water are formed?
how much aspirin is recovered? Solubility of aspirin in water at 25oC is one gram of aspirin per 300 milliliters of water.
Calculate the change in the standard molar entopy for the formation of gaseous nitrogen dioxide from gaseous nitrogen and gaseous oxygen.
What is the value of at this temperature? 23.15 At this temperature the rate constant for the reverse reaction is 310. . What is for the reaction?
Explain why cis dichloroethene has a boiling point of 60 degrees C while trans - dichloroethen has a boiling point of 48 degrees C.
Suppose you live in an alternate universe where a different set of quantum numbers is required to describe the atoms in that universe. The quantum number rules in the alternative universe are
Calculate both the molar and molal concentration of water (H2O) in a solution of pure water when the water is at 10C and 30C. Use an accurate molecular weight for water
A 250.0ml sample of air at 100.0 K is warmed to 200.0 K at constant pressure.What is the volume of the air sample at the new temperature.
the specific heat of H2O(s) is 2.09 J/g ?C, of H2O (l) is 4.184 J/g ?C, and of H2O (g) is 1.84 J/g ? C. The heat of fusion of water is 334.7 J/g and the heat of vaporization is 2259.4 J/g.
Calculate the de Broglie wavelength of a 143g- baseball traveling at 90mph ?
A graduated cylinder contains 18.0 m/L of water. What is the new water level after 35.6 g of silver metal with a density of 10.5 g/mL,is submerged in the water?
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