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State the balanced equation for the ionization of the weak base pyridine, C5H5N in water, H2O. Phases, such as (aq) or (l), are optional.
Using the data below and Coulomb\'s law, calculate the energy change for this reaction (per formula unit of MgS). Mg + S =Mgs
State the net equations the standard cell potential as well as the number of electrons transferred in the following electrochemical cells.
Calculate the molarity of the solution when 5.396 g of sodium chloride are added to water in order to make a 2.00 L solution. The molarity of NaCl in the solution
A hydrogen atom with an electron in its ground state interacts with a photon of light with a wavelength of 1.22 × 10-6m. Could the electron make a transition from the ground state to a higher energy level?
The following reaction is not spontaneous at any temperature. Which applies to the system at 298 K? 2C(s) + 3H2(g) --> C2H6(g)
Solute S has a partition coefficient of 6.1 between water (phase 1) and hexane (phase 2). A 74.0 mL solution of S in water is extracted six times with 12.0 mL of hexane. Calculate the fraction of S remaining in the aqueous phase.
1. Describe the method you would use to seperate a mixture of water(boiling point=100) can be seperated from ethanol(boiling point= 60c)
If 27.0 mL of AgNO3 is needed to precipitate all the ions in a 0.800mg- sample of KCl (forming AgCl), what is the molarity of the AgNO3 solution
If the electrochemical cell is allowed to operate as a gavanic cell, which solution species will be oxidized, which solution species will reduce. write the sybolic representation for the galvanic cell.
Write a balanced equation for the reaction of NaCH3COO and HCl. Express your answer as a chemical equation.
If 50.0 of ethanol (density 0.789g/mL) initially at 6.0 is mixed with 50.0 of water initially at 28.2 in an insulated beaker, and assuming that no heat is lost, what is the final temperature of the mixture?
If 85.00% reaction is required to obtain a noticeable color from the formation of the Cr(SCN)2+ ion, how many hours are required
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