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How many moles of Na2SO4 are present in 200(cm cubed) of a solution which has a concentrated of 0.1mol dm(-3).
Compute the enthalpy change for the thermite reaction: 2Al(s)+Fe2O3(s)→2Fe(s)+Al2O3(s), ΔH°rxn=-850 kJ Explain when 8.00mol of Al undergoes the reaction with a stoichiometrically equivalent amount of Fe2O3.
chromatogram for the presence of compounds other than isopentyl acetate. Explain the presence of any additional compounds
Question- There is a 7.50 L container of 3 gases N2, O2 and unknown. The total pressure is 2.1 atms and the partial pressures of O2 and N2 are 0.60 atm and 0.35 atm. The temperature of the container is 25 degrees Celsius. What is the number of mol..
how to determine the number of milliliters of 6.00 M HCl solution would be required to completely react with 65.0 mL of 1.15 M Al(OH)3 solution
What spectral features (including carbon spectra, proton spectra, IR spectra and mass spectra) allow you to differeintiate the product (acetanilide) from the starting material (aniline)
Problem- The half life of iodine 131, also called radio iodine is 8.02 days. How much iodine-131 will remain after two half lives in a sample that initially contains 5.0g of the nuclei de. Please give detailed explanation.
A certain liquid has a vapor pressure of 92.0 Torr at 23.0 °C and 204.0 Torr at 45.0 °C. Calculate the normal boiling point of this liquid.
Explain which one of each of the subsequent pair of nuclides would you expect to have the longest half-life
Consider the decomposition of ammonium nitrite: NH4NO2 yields to N2 + H2O. What would be the change in pressure in a sealed 10.0 L vessel due to the formation of N2 gas when the ammonium nitrite in 2.90 L of 0.990 M NH4NO2 decomposes
estimate the volume of 5 M NaOH must be added to adjust the pH from 4 to 9 solution of 100mL 100mM phosphoric acid
Calculate the atomic mass of the metal. A 0.194 gram sample of a metal, M, reacts completely with sulfuric acid according to: M + H2SO4 --> MSO4 + H2
A flask has a mass of 78.23 g when empty and 593.63 g when filled with water. When the same flask is filled with concentrated sulfuric acid, H2SO4, its mass is31026.57 g. What is the density of concentrated sulfuric acid?
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