1. List the species present at equilibrium in a solution with the following composition:

NH4Cl = 0.0200 mol/L NaOH = 0.0430 mol/L

H2SO4 = 0.0150 mol/L NaNO3 = 0.0100 mol/L

2. Write the n equations for n unknowns describing the equilibrium composition of

this system.

3. Make a spreadsheet and use Excel’s Solver function to determine the equilibrium

pH and concentrations of all species in this solution.

An aqueous solution of hydroiodic acid is standardized by titration with a 0.186 m solution of calcium hydroxide. if 26.5 ml of base are required to neutralize 20.3 ml of the acid, what is the molarity of the hydroiodic acid solution? m hydroiodic acid

Ill give brainiestif one neutron initiates a fission event that produces two neutrons in the products, how many new reactions can now be initiated? if each of the neutrons produced in the first fission event then initiates a fission event that produces one neutron in the products, how many new reactions can now be initiated by each neutron? how many neutrons in total were produced by the two fission events described?

1) which of the following is the best example of a physical change? a) sugar dissolving in tea b) firefly glowing 2) in the combustion of ethane, what is/are the reactants? c2h6 + o2 ==> co2 + h2o a) c2h6 and o2 b) co2 and c2h6