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write balanced reaction equations for the reacions involved a) when aspirin dissolves in aqueous NaHCO3 and b) when aspirin is precipitated from a sodium acetylsalicylate solution by HCl. assuming that both reactions are spontaneous under standard conditions, lable the stronger acid, stronger base, weaker acid, and weaker base in each equation.
a proton in a linear accelerator has a de broglie wavelength of 138 pm. what is the speed of the
A reaction is performed in which 50.0 ml of 0.400 M silver nitrate and 75.0 ml of 0.100 M hydrochloric acid are mixed together. The initial temperature of the solution was 25.0oC
Dry ice, CO2 (s), has a melting temperature of -78o C and will not form a liquid unless atmospheric pressure exceeds 5.1 atm. The following reaction is conducted at -90o C and 101.325 kPa: CO2 (g) ? CO2 (s)
Calculate the heat required to raise the temperature of 1.5 L of a liquid with a density 0.75 g/mL and a specific heat of 2.2 J/g/K
A 1.5991 g sample of a hydrocarbon is combusted to give 1.6918 g of H2O and 5.1661 g of CO2. What is the empirical formula of the compound
a. If a mint leaf is 12% methanol how much should be distilled? b. What temperature should the distillation take place-approximately?
what is the theoretical yield of carbon dioxide when 56.0 g of methane is burned in a excess of oxygen, according to the equation CH4 2 )2 ->CO2 ,2H2o.
Describe a situation where a substance changed between the solid and liquid states or between liquid and gas states? Can you describe an example of when a substance changed between the gas and solid states? Let's see how many different examples we..
compute the volume of the tank if this tank has 115 moles ofnbsp neon gas and has a pressure of 57 atm at a temperature
estimate the enthalpy change for the combustion of one mole of acetylene c2h2 to form carbon dioxide and water vapor.
f gas reacts with nh3 gas to produce n2f4 tetrafluorohydrazine or dinitrogen tetrafluoridenbspand hfhydrogen fluoride.
Find the number of faradays passed through the circuit. What mass of Ag is deposited at the cathode in the second cell. What mass of Fe(NO3)3 might be recovered from the third cell solution
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