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A polonium parent having 84 protons as well as 130 neutrons undergoes a series of three radioactive decays, one β decay and two α decays. Explain what is the name and symbol for the daughter species that results from this decay?
a chemist wants to prepare 0.50 m hcl. commercial hcl is 12.4 m. how many milliliters of the commercial acid does the
The stack gas contains C02 at a partial pressure of 80 mm Hg and no CO,O2, methane or ethane. Calculate the mole fraction of methane in the fuel and the dew point temperature of the stack gas.
How to determine the percentage difference between the experimental and the predicted value for the rate
The d-d transition in [Ti(H2O)6]3+(aq) produces an absoption maximum at 500 nm. What is the magnitude of DELTA for this complex in kJ/mol?
A reaction mixture initially containing 0.520 M H2S and 0.520 M SO2 was found to contain 1.0 x 10 -3. A second reaction mixture at the same temperature initially contains 0.245 and 0.335. calculate the equilibrium concentration of H2O in the secon..
Calculate the number of moles of sodium bicarbonate orginally present in the unknown mixture, knowing that 20.0ml of 0.100M HCL were used in the step 2 of titration, using methyl orange as an indicator.
the two amino acids, glycine and alanine, can form two different dipeptides. Draw one of the possible dipeptides as it would appear at a pH of 7. Be sure to include any necessary nonzero formal charges in your drawing
When the 1-bromobutane is first formed it often has a yellow or brown color, but pure 1-bromobutane is colorless. explain why in your own word please
A. When dissolved solute and undissolved solute exist in equilibrium with each other in a solution, that solution is said to be "supersaturated".
How does a solution of two volatile components with strong solute-solvent attractions deviate from Raoult's law?
Determine the amount of energy needed to turn 10g of H2O from 11degrees Celsius to 101degree Celsius? Draw a graph and colve the problem.
He decided to dry the alum by heating it strongly. Unfortunately he also drove off the waters of hydration. What is the mass of his remaining anhydrous salt?
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