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A liter of a solution saturate at 25 degree c with calcium oxalate, CaC2O4 is evaporated to dryness giving a .0061 gm residue of cac2o4. Calculate the concentration of the ions and the molar solubility and the solubility product constant for the Salt at 25 degree c. Show the balance reaction.?
The famous Hope Diamond at the Smithsonian National Museum of Natural History wieghs 45.52 carats. Diamond is a crystalline form of carbon.
Predict the major organic product formed when 1-bromobutane undergoes a SN2 reaction with EtONa.
An unknown gas is held in 2 separate containers with identical number of moles of gas. The volume of container 2 is 0.347 L and has a pressure of 0.315 atm. The volume of container 1 is 1.145 L. What is the pressure of the unknown gas in container..
What ions and/or molecules are present in relatively large proportions in a solution of a weak base NH4OH (aq)?
What mass of carbon dioxide is present in 1.00 m3 of dry air at a temperature of 25c and a pressure of 731 torr
Calculate the ion mobility of 100nt long DNA molecules and single nucleotide molecules. Correlate this to the conductivity of the solution.
Calculate Qsp for calcium fluoride (Ksp=3.9x10^-11) when 195.0 mL of a 0.00780 M solution of Ca(NO3)2 is added to 175.0 mL of a 0.00740 M solution of KF
What are the concentrations of OH- and H in a 0.00085 M solution of Ba(OH)2 at 25 °C? Assume complete dissociation.
reversible expansion from Pinitial=25.0 bar and Vinitial=4.50L to Pfinal=4.50 bar, (2) a single step irreversible expansion against a constant external pressure of 4.50 bar
Would the ortho: para ratio of nitration of chlorobezene be less than, equal to, or greater than the 38:62 ratio observed with the nitration of bromobenzene. Why.
Identify the limiting reagent and the volume of CO2 formed when 11L CS2 reacts with 18L O2 to produce CO2 gas and SO2 gas at STP.
What would be pmm concentration of a solution of 0.000775 mol of sodium chloride in 1250 ml of solution. (Molecular weight of sodium chloride is 58.5)
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