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Question- When aqueous solutions of K2SO4 and Pb(NO3)2 are combined, PbSO4 precipitates. Calculate the mass, in grams, of the PbSO4 produced when 1.74 mL of 0.154 M Pb(NO3)2 and 3.64 mL of 0.75 M K2SO4 are mixed. Calculate the mass to 3 significant figures.
Please explain above problem in step by step manner so I can easily understand it
Question- Write the steps in the mechanism of the base catalyzed aldol. condensation of cyclohexanone with two molecules of benzaldehyde. Predict the compounds formed from the base catalyzed condensation of acetone and acetaldehyde.
Using the Boltzmann distribution given below, determine Jmax (quantum number of the most intensely populated rotational state) as a function of temperature. Then find Jmax for CN+ at 298 K and 1100 K.
What ions have a larger radius than their parent atom. What is the effect on atomic properties of increasing nuclear charge
fe2o3 2al -----gt 2fe al2o3what masses of ironiii oxide and aluminum must be used to produce 15.0 g of iron? what is
Substance A has a greater molar mass then substance B. Both are nonelectrolytes. If 50 g of substance A are dissolved in 250 g of water in one beaker
Determine the binding energy of an O-16 nucleus. The O-16 nucleus has a mass of 15.9905 amu, A proton has a mass of 1.00728 amu, a neutron has a mass of 1.008665amu, and 1amu is equivalent to 931 MeV of energy.
The data below were taken to calibrate the instrument. An unknown protein sample gave an absorbance of 0.867. Calculate the mass (micrograms) of protein in the unknown.
A solution of barium hydroxide at 25C is 0.125 M Ba(OH)2. What are the concentrations of hydronium ion and hydroxide ion in the solution
Silver ion reacts with excess CN- to form a colorless complex ion, Ag(CN-)2 , which has a formation constant Kf=2*10^20. Calculate the concentration of Ag+ in a solution prepared by mixing equal volumes of 1.8×10-3M AgNO3 and 0.20M NaCN
Problem- N2O5 is a gas under standard conditions. write the balanced equation for the formation reaction showing the formation of N2O5 from nitrogen and oxygen under standard condtions
Two substances are mixed together. Explain how the observer could determine if this reaction is just a mixture or an actual chemical reaction. Give an example of two reactants that would form a mixture and two reactants that would form a chemic..
Write the Henderson-Hasselbalch equation for a solution of propanoic acid (CH3CH2CO2H, pKa = 4.874 ) using HA and A- in the expression. Using this equation, calculate the quotient [A-]/[HA] at A) pH 4.01 B) pH 4.874 C) pH 5.20
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