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What is the pH and the [OH-] of the solutions with the following [H3O+]? a) 2.3 x10-4 , b) 4.8 x10-8, c) 6.3 x10-2
a certain substance has a molar enthalpy of vaporization of 31.6 kjmol. how much of the substance is in a sample that
C2H4+3O2= 2CO+2H2O if 2.70 mol C2H4 is reacted with 6.30 mol O2 a. identify the limiting reagent
What would the product be in an aldol condensation and dehydration reaction for 4-methoxybenzaldehyde
A certain compound is made up of three chlorine atoms, one phosphorus atom, and one oxygen atom.
Determine the final pH of a solution that is prepared by mixing 25 mL of 0.15 M sodium hydroxide( NaOH )with 20. mL of 0.20 M HA,( a weak acid with Ka = 2.3 x 10-6)?
500 mL of 0.1 M NaOH is added to 585 mL of 0.25 M weak acid (Ka = 2.21 x 10^-5). What is the pH of the resulting buffer?
A solution may contain any of the Group III cations. Treatment of the solutio with CIO- in alkaline medium yields a yellow solution and a colored precipitate.
An unnormalized wavefunction for an electronin a carbon nanotube of length L is sin(2pix/L). Normalize this wavefunction.
A copper refinery produces a copper ingot weighing 75 kg. the density of the copper is 8.94 g/cm^3. if the copper is drawn into a wire whose dimeter is 8.250mm
A patient needs 2.70×10^-2 of a sulfa drug. There are 8.00 tablets in stock. How many tablets should be given?
What is the strongest type of intermolecular force in the following compounds? dipole-dipole, london desperison or hydrogen bounding
Sort the following transitions from an excited state to a ground state according to the series into which they fall. Drag the appropriate transitions to their respective bins of lyman series
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