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How many milliliters of 8.52×10-2M Ba(OH)2(aq) are required to titrate 45.50mL of 5.36×10-2M HNO3?
Calculate the nuclear binding energy of one lithium-7 atom. the measured atomic mass of lithium-7 is 6.015amu.
A 4.000-g sample of the metal nitrate M(NO3)2 was dissolved in water and treated with excess aqueous sodium sulfate. The sulfate salt that formed weighed 3.318 g. Determine the identity of the metal.
This solution was titrated with 2.95*10^-3 moles NaOH. How many moles of HCl consumed by compound? How many moles of NH3 is in sample?
A geological sample is found to have a Pb-206/U-238 mass ratio of 0.337/1.00. Assuming there was no Pb-206 present when the sample was formed, how old is it
Observe the d-orbitals on a central metal and use the character table to derive their irreducible representations (remember which column to look at). Circle any that are nonbonding for sigma interactions.
what is the oxidizing and reducing agent 3C2H5OH(aq) +2Cr2O7^2-(aq)+16H^+(aq)-->3CH3CO2H(aq)+4Cr^3+(aq)+11H2)(l)
To what temperature must a substance be heated so that its thermal energy is about 9 kJ/mol? Express your answer to the nearest degree.
describe the preparation of 200 mL of 1.00% (w/v) aqueous CuSO4, from a 0.218 M CuSO4 solution.
What are the concentrations of a weak formic acid (HCOOH) anf formate ions (HCOO-) in a 0.350 M formate buffer, pH 4.25? (pKa = 3.75): The formic buffer is composed of weak formic acid and its formate salt
how many grams of sodium lactate nac3h5o3 should be added to 1.00 l of 0.260 m lactic acid hc3h5o3 to form a buffer
Add HCl or NaOH to 1.00 L of 1.00 mol L-1 HA(aq) to obtain a solution with a pH of 4.00 at 25oC? How many moles of HCl or NaOH are required
How do you determine what region the electromagnetic spectrum lamda = 8.67x10^-7 m corresponds to : UV , Visible or IR
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