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What is the final Celsius temperature if 4.55 L of nitric oxide gas at 35°C is cooled until the volume reaches 1.00 L? Assume the pressure remains constant.
A solid block of exactky 100.0 cm 3 has a mass of 153.6g. Determine its density. Will the block sink or float on water?
Consider a cylindrical container partially filled with ethanol (C2H6O). Using the model in which ethanol vapor pressure is a result of equilibrium between the rate of ethanol evaporation and condensation.
Calculating the Moles of Aspirin, The molecular formula for aspirin is HC9H7O4, Calculate the molecular weight for aspirin
Calculate the mass of calcium carbonate formed when 25 mL of a solution of calcium chloride at 0.10 M react with sodium carbonate in excess
Suppose you placed 0.500 mol of COBr2 in a 2.00 liter flask and heated it to 73°C. After equilibrium was reached, suppose you added an additional 2.00 mol of CO to the flask at the same temperature
Calculate the wavelength in nanometers of the spectral line in the visible spectrum of hydrogen for which n1 = 2 and n2 = 3. What color is this line?
The solubility of compound A in ethanol is 0.80g per 100.0mL at 0oC and 5.00g per 100.0mL at 78oC. What is the minimum amount of ethanol needed to recrystallize a 12.00g sample of compound A.
oxygen gas is collected over water at 21 degrees C and an atmosperic pressure of 748 mm Hg. What is the partial pressure of oxygen gas in the mixture
0.01M HCl reacts with 3.18 g Na2CO3. Here 50 mL of HCl is required for the reaction. Calculate the volume of CO2 produced at 273 K and 1 atm.
Calculate how many grams of Ni2+ are present in 3.36 moles of nickel(II) fluoride(NiF2) and also determine the number of moles of F- ion are present in 4.82 grams of nickel(II) fluoride.
A graduated cylinder contains 131 mL of water. A 18.0 g piece of iron (density = 7.86 rm{g/cm^3}) and a 25.0 g piece of lead are added.
A .500M solution of a weak acid, HX, is only partially ionized. The [H+] was found to be 3.69x10^-3M. Find the dissociation constant for this acid.
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