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After 68.0 min, 23.0% of a compound has decomposed. What is the half-life of this reaction assuming first-order kinetics?
how large in kg an oxygen candle kclo3 would be needed to supply 8 people with enough oxygen for 24 hours on a small
how many radial nodes are present in the radial eigenfunction associated with the 3p atomic orbital associated with the 3p atomic orbital for hydrogen like atom?
a typical person has 200 mg of cholesterol pr 100 ml of blood. If the total blood volume of an individual is 5 liters, how many grams of total blood cholesterol does the individual contain?
You require to prepare a 100mM acetate buffer a pH of 5.5. Use the Henderson-Hasselblach equation to compute the number of moles and grams of sodium acetate (NaCH3COO) and the number of moles and mL of acetic acid (CH3COOH;stock is 16.6 M) require..
In the chemical formula for alu, there are 12 water molecules present. It is also possible to prepare the anhydrous compound potassium aluminum sulfate. On the "molecular scale" describe how a crystal of alum differs from a crystal of potassium al..
A metallic element with edge length 362 pm crystallizes in a face-centered cubic unit cell. What is radius of the atom
Estimate the ethylene glycol C2H6O2 mass in gram that should be added to 12.0 L of water to produce a solution for use in a car's radiator as antifreeze that freezes at -23.3oC. Assume the density of water to be 1.00 g/mL and Kf = 1.86oC .kg/mol.
On average, what percentage of random rolls of three (3) regular playing dice should result in a combined value of 5
Solve an equilibrium problem (using an ICE table) to calculate the of each of the pH following solutions.
traditional MALDI mass spectrometry, what are two factors that limit the spatial resolution that can be obtained in imaging mode?
Question- Find the ph and concentrations of CO3^2-, HCO3^-, H2CO3 at the first equivalence point when 50ml of 0.150M carbonic acid is titrated with 0.120M NaOH. (pk1=6.351, pk2=10.329)
The lattice energy for MgO is 3890 kJ/mol, as well as the second ionization energy (IE2) of MG is 1450.6 kJ/mol. Utilizing these data find out the second electron affinity for oxygen EA2(O).
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