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An aqueous solution of calcium nitrate is allowed to react with an aqueous solution of potassium carbonate. The net ionic equation would contain which of the following species?
2 Ca2+ (aq)
2NO3-(aq)
Ca2+(aq)
NO3- (aq)
2K +(aq)
In a volume of 1 cm3 of helium gas at 300 K and 1 atm pressure, ? is about 10-5 J. Calculate g.- Calculate the number N of helium atoms. (d) Show that g.
Propionic acid and methyl acetate are isomers. Which has the higher boiling point and why. Which one would have the greater rf value on TLC.
nbspa solution of 6.05 m of an acid hx has a density 0.892 gml. molar mass of the acid hx 2.00 gmol. find out the
Write balanced combustion reactions for the petrol and biodiesels shown above.
What is the hydronium-ion concentration in a 0.025 M solution of carbonic acid, H2CO3? For carbonic acid, Ka1=4.2 * 10^-7 and Ka2= 4.8 * 10^-11?
How many ppm Pb2 ion are contained in this solution? How many ppm of nitrate ion are contained in the same solution?
The activity coefficients of the Mg2+ and Cl- ions in this solution. The mean ionic activity coefficients of these ions.
What would the solubility of copper (II) tartrate be in a solution that contains 0.12 M sodium tartrate?
A solution is 0.1 mM in NaF, Na2CO3, and Na3PO4. What would be the order of precipitation as a source of Ca2+ is added gradually to the solution? The relevant Ksp values are Ksp [CaF2] = 4.0×10-11, Ksp[CaCO3] = 8.7×10-9, Ksp[Ca3(PO4)2] = 1.3×10-32..
Write a balance chemical reaction showing that Ru2+ disproportionates in aqueous acid. calculate standard potential and the Gibbs Free Energy for the reaction.
Sodium carbonate reacts with silver nitrate to produce sodium nitrate and solid silver carbonate
what is the ph change of a 0.270m solution of citric acid pka 4.77 if citrate is added to a concentration of 0.145m
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