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A 0.148 M solution of a monoprotic acid has a percent ionization of 1.55%. Find out the acid ionization constant for the acid.
A certain indicator HA has a ka value of 1.6x10-7. The protonated form of the indicator is blue as well as the ionized form is red. 1) Explain what is the pka of the idicator
Magnesium metal reacts with HCl solution, liberating H2 gas and generating Mg2+ cations in solution. A 1.695-g sample of Mg metal is added to 125.0 mL of a 4.00 M HCl solution, and the reaction goes to completion. What mass of H2 is formed
How many grams of CuSO4 5H2O are needed to prepare 100 ml of a .15 m solution CuSO4
Calculate the vapor pressure lowering of a solution of 2.80 g of aspirin (molecular weight = 180.15 g/mol) in 45.0 g of methanol (CH3OH) at 21.2°C.
calculate the density in (g/L) of CH3CH3 in a 1.00L sealed flask at 85 degrees celsius and 500mmHg
a sample of oxygen is collected in a 206 ml container over water at 15c and the barometer reads 793 torr. what volume
Hydronium ion concentration using Henderson-Hasselbalch equation - What is the hydronium ion concentration of a solution
Given the Ksp values for the following precipitates, please predict which precipitate has the largest solubility in the presence of 0.01 M of its composing anions (e.g., in the presence of 0.01 M Cl- ion for AgCl(s))
N2O2 draw valence bond drawings for the resonance forms-clearly labeling the sigma and pi bonds and hybrid orbitals.
Find the change in entropy (S) for the system, surroundings and universe for the conversion of 1 mol of ice at 0 degrees C and 1.00 atm to 1.0 mol of steam (vapor) at 100 degrees C and 0.50 bar. Useful data might be
if a reation vessel contains .25 mol KO2 AND .15 mol H2O, what is the limiting reactant ? How many moles of oxygen can be formed ?
Explain what would happen to the color of a dilute solution containing FeCl_4_^- if you added a solution containing silver ion, Ag^+. added concentrated HCl.
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