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The accompanying graph shows the titration curves for two monoprotic acids.
(a)Which curve is that of a strong acid?
(b) What is the approximate pH at the equivalence point of each titration?
(c) 40.0 mL of each acid was titrated with 0.100 M base.Which acid is more concentrated?
An electron in a hydrogen atom goes through a change in energy level from n=4 to n=2 calculate the wavelength of the photon. Assume wavelength =470nm calculate the energy photon.
How to calculate wavelength of light emitted when transition in hydrogen atom? How caclulate wavelength in nanometers?
Does your spectrum allow you to confirm that the structure of the product is a combination of the two reactants. Briefly explain.
How many grams of Na2CO3 are present in 17.0 mL of a solution that is 39.0% Na2CO3 by mass. The density of the solution is 1.05 g/mL.
If 8.6 L of H2 reacted with 4.3L of O2 at STP, what is the volume of the gaseous water collected (assuming that none of it condenses)? 2H2(g) + O2(g) -> 2H2O(g)
Explain what is the molar solubility of AgCl in 1.0 M K2S2O3 if the complex ion Ag(S2O3)23- forms. The Ksp for AgCl is 1.8 *10(-10) and the Kf for Ag(S2O3)23- is 2.9*1013.
Problem- A chemistry student needs 65.0g of tetrahydrofuran for an experiment. By consulting the CRC Handbook of Chemistry and Physics, the student discovers that the density of tetrahydrofuran is 0.889g*cm^-3. 1) Calculate the volume of tetrahydro..
28.98 mL of a 0.1962 mol/L EDTA solution is required to titrate a sample to the equivalence point. How many moles of divalent metal cations were in your sample?
Problem- The molar heat capacity of silver is 25.35 J/mol??C. How much energy would it take to raise the temperature of 11.8gof silver by 12.2?C
You may presume that carbonic acid (H2CO3) formed by the reaction of CO2 and water is the only factor affecting pH by the reaction CO2(g) + H2O(l) H2CO3(aq); (b) define what volume of CO2 at 25oC and 1 atm is dissolved in a 20.0-L bucket of toda..
the crucible is handled with oily fingers after its mass measurement but before the 3g sample of the hydrated salt is
How much heat is required to warm 221 g of ice from -44.7°C to 0.0°C, melt the ice, warm the water from 0.0°C to 100.0°C, boil the water, and heat the steam to 173.0°C?
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