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How do I calculate the pH for a strong acid solution after dilution?
The to * transitions of purine and pyrimidine bases in DNA results in absorbance of light at 260 nm. If the extinction coefficient for a PCR primer of DNA is 1.00 x 104 M-1 cm-1
A 1.25 g sample of dry ice is added to a 765 mL flask containing nitrogen gas at a temperature of 25.0 C and a pressure of 715 mm Hg. The dry ice is allowed to sublime (convert from solid to gas) and the mixture is allowed to return to 25.0 C. Wha..
When the following reaction is balanced in basic solution using the lowest possible whole number coefficients, the coefficient of Pb(OH)42-(aq) will be- BrO3-(aq) + Pb(OH)42-(aq) --> Br-(aq) + PbO2(s)
The Rydberg constant depends on the mass of the nucleus. What is the difference in wave numbers of the 3p->1s transition in hydrogen and deuterium
Compute the enthalpy change for the thermite reaction: 2Al(s)+Fe2O3(s)→2Fe(s)+Al2O3(s), ΔH°rxn=-850 kJ Explain when 8.00mol of Al undergoes the reaction with a stoichiometrically equivalent amount of Fe2O3.
If the mass of helium-3 is 5.0064 x 10^-24 grams and the mass of a deuteron is 3.34370 x 10^-24 grams. Calculate the energy released by this reaction using Einstein's equation.
In the presence of large excesses of I^-1 ion, the following set of data is obtained. What is the average rate of disappearance of H2O2(aq) in M/s in the first 45.0 seconds of the reaction if 1.00L of H2O2 reacts at 25C and 1.00atm pressure?
If 100 mL of a solution containing 0.001 g of a compound with a molecular weight of 150 has a measured absorbance in a 1-cm cell of 2.0, what is the compound's molar extinction coefficient?
Problem- Robinson predicted a carbocation intermediate in the addition reaction of an alkene and CL2. What experimental evidence contradicts this mechanism
When 0.052 mol of aluminum sulfate are dis- solved in enough water to make 179 milliliters of solution, what is the molar concentration of aluminum ions?
find the time required for the total pressure in the system containing N2O5 at an initial pressure of 0.1 atmospheres to raise to 0.145 atmosphere
How many unit cells are in exactly 1 cm3?
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