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Explain what is the PH of a solution prepared by dissolving 5.4g of lithium hydroxide in water to give 250ml of solution.
A compound contains only C, H, and N. Combustion of 31.5 mg of the compound produces 30.2 mg CO2 and 37.0 mg H2O. What is the empirical formula of the compound
What is the empirical formula of the comound composed of 42.580% carbon, 7.147% hydrogen, and 50.273% chlorine
the equilibrium constant for the reaction of bromine with chlorine to form bromine monochloride is 58.0 at a certain
Correlation of structure with the melting point - What structural aspect of these 18-carbon fatty acids can be correlated with the melting point?
Define how the separation could allow traces of acetaminophen in the aspirin and caffeine solution. Explain the solubility of CH2Cl2 is acetaminophen 0.0005, aspirin 0.033 caffeine 0.089 g/mL.
In acidic solution Fe3+ a weak oxidizing agent can oxidize iodide ion to iodine, I2 by conversion to Fe2+ without interference from bromide or other ions. State a balanced equation for this oxidation-reduction reaction
If 0.80 g of sulfur dioxide at 10.00 atm pressure (P) dissolves in 5.00 L of water at 25.0°C, how much of it will dissolve in 1 L of water at 9.00 atm pressure (P) and the same temperature?
The molality of a sodium nitrate solution is 1.44 m. What is the mole fraction of NaNO3? The molar mass of NaNO3 is 85.06 g/mol; the molar mass of H20 is 18.02.
A solution is prepared by dissolving 0.16mol of acetic acid and 0.16mol of ammonium chloride in enough water to make 1.0 L of solution.
The following pictures represent the progress of a reaction in which two A molecules combine to give a more complex molecule A2, 2A ? A2. What is the order of reaction with respect to A?
calculate the number of molecules of water in a swimming pool which is 40.0 m in length 20.0 m in width and 5.00 m in
A compound is composed of only C and H. It contains 88.82% C by mass and has a molar mass of 54.09 g/mol. What is the correct molecular formula
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