What is the molality of particles in a solution
What is the molality of particles in a solution containing 25.4 g of Al(NO3)3 dissolved in 530. g of water? Use molar masses with at least as many significant figures as the data given.
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A volume of 80.0 ml of H2O is initially at room temperature (22.0 C). A chilled steel rod at 2.00 C is placed in the water. If the final temperature of the system is 21.1 C , what is the mass of the steel bar?
Assuming that all the FeS2 reacts, how many grams of SO3 are produced when 20.0 g of the FeS2 reacts with 16.0 g of O2?
How do the densities of metals can be calculated? Could this method be used for determining the density of mercury as well? Briefly explain your answer.
a solution is prepared by dissolving 20.0 g of NaI in enoug water to make 300 mL of solution How many moles of ions are in 25.0 mL of the solution?
This gas at a total pressure of 34 is shaken with water at 30. Calculate the molar concentration of radon in the water.
Balance the equation and answer in terms of moles. The disinfectant hydrogen peroxide (H2O2) decomposes to form water and oxygen gas. How much O2 will result from the decomposition of 8.38 mol of hydrogen peroxide?
Acetylene gas undergoes combustion to produce carbon dioxide and water vapor. if 75.0 L of co2 are produced how many liters of acetylene are required?
A solution to replace potassium loss contains 38 M/EqL each of K+ and Cl-. How many moles of K+ are in 2.0 L of the solution?
Consider the constitutional isomers 2-methyl-1-butene, 2-methyl-2-butene, and 3-methyl-1-butene. When each of these alkenes is subjected to catalytic hydrogenation (H2, Pt), a single product results. Which of the following best describes the stru
The space shuttle orbiter utilizes the oxidation of methyl hydrazine by dinitrogen tetroxide for propulsion.
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