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A 0.040 M solution of a monoprotic acid is 14 percent ionized. Calculate the ionization constant of the acid.
calculate the concentrations of h+, oh-, f-, and undissociated hf molecules in 0.10 M hf. Ka for HF is 7.1x10^(-4).
Using terms in the Hartree-Fock energy expression, explain why the lowest-energy triplet state of the He atom is higher in energy than the singlet state.
A solution is prepared by mixing 0.3355 mol of NaNO3 (84.995 g mol-1) with 235.0 g of water (18.015 g mol-1). Its density is 1.0733 g mL-1. What is the molality of the solution?
For each reaction below, (a) identify the oxidation states of the atoms and (b) identify the oxidant, reductant, species oxidized, and species reduced.
a toxicologist studying mustard gas, S(CH2CH2Cl)2, prepares a mixture of 0.675 M SCl2 and 0.973 M C2H4 and allows it to react at room temperature (20.0 c) at equilibrium S(CH2CH2Cl)2 = .350 M. calculate Kp
The sample is diluted with 72.178 g of water. A 14.024 g aliquot of this solution is then titrated with 0.1097 M HCl. It required 29.55 mL of the HCl solution to reach the methyl red endpoint. Calculate the weight percent NH3 in the aqueous waste.
Place the following elements in order of decreasing atomic size: tellurium, bromine, argon, cesium, strontium, and selenium. Rank from largest to smallest. To rank items as equivalent.
if 9.0L of NO are reacted with excess O2 at STP, what is the volume in liters of the NO2 produced?
If the pressure of CO2 is 0.550 atm, what concentration of carbon dioxide can be dissolved in water at 0.00C.
What mass in grams of carbon dioxide is produced if 85.0 mol of magnesium carbonate, MgCO3, are heated and allowed to decompose according to this equation? MgCO3(s)--> MgO(s) + CO2(g)
A student has a sample (less than 100 mg) that she would like to test for presence of lead. She has access two different atomic absorption spectrometers (flame and furnace) that could be used for analysis.
a new solid octahedral complex has been synthesis containing only chloride ans ammonia ligands. when 9.64 10-4 moles of
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