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A 1.87 g sample of Mg reacts with 80.0 mL of a hydrochloric acid solution (pH = -0.544). What is the pH of the solution after all the Mg has reacted? Assume constant volume.
The addition of a crystal of sodium chlorate to a sodium chlorate solution causes additional crystals of sodium chlorate to precipitate. Will the solution be saturated, unsaturated, or supersaturated?
how many heat energy is required to heat a cup of water (195.0) from room temperature (25.0C) to boiling (100.0C).
Subsequent to 77.0 min, 15.0% of a compound has decomposed. Explain what is the half-life of this reaction presume first-order kinetics
Unlike chemical reactions, for which mass is conserved, nuclear reactions result in slight changes in mass. When mass is lost, it becomes energy according to the equation where is the energy in joules, is the mass defect in kilograms
By how much does the chemical potential of benzene change when the pressure exerted on a sample is increased from 100kPa to 10MPa
Determine the molality of a solution prepared by dissolving 0.500 moles of caF in 11.5 moles H2o
why must the Meltemp apparatus cool dwon to around 40 C between measurments? 5)why you expect ionic solids to have higher melting point than molecular solids?
Write a balanced thermochemical equation for the standard formation of CH3OH
The molecules methane (CH4) as well as ammonia (NH3) both has four regions of high electron density around their central atoms, and yet these two molecules have different molecular geometries. Explain why are their molecule geometries different
Determine the symmetry-adapted linear combinations for the molecular orbitals of NH3 using atomic orbitals from the nitrogen and hydrogen atoms.
iron sulfide fes is a sparingly soluble salt with a ksp of 6.3 x 10-18. calculate the molar solubility of iron sulfide
Use the Rydberg equation to predict the wavelength of the electromagnetic radiation emitted for following electron transitions for the hydrogen atom (rounded-off to the nearest 0.1nm).
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