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If, in a certain experiment, over a specific time period, 0.0048 mol PH3 is consumed in a 2.0-L container each second of reaction, what are the rates of production of P4 and H2 in this experiment?
A closed end manometer was constructed from a U-shaped glass tube which was 80.0 cm high. It was loaded with mercury so that the closed side was filled all the way to the top
What volume (in mL) of 0.583 M solution of sodium chloride can be made from 48.3 mL of a 1.88 M solution? Assume the volumes are additive
When the nuetron to proton ratio in a raditoactive isotope is higher than that required for stability, it main gain greater stability by emitting
A 100.0-g sample of water at 27.0 oC is poured into a 77.4-g sample of water at 89.0 oC.What will be the final temperature of the water?
what is the conduction electron density of copper/ Answer should be stated as number of conduction electrons per cubic meter.
Calculate the pH and percent ionization of a 0.10 M solution of CH3NH2
25g of a hydrocarbon undergoes complete combustion leading to the formation of 77 g of CO2. What is the % of carbon in the hydrocarbon?
A Be3+ ion emitts a photon with a frequency of 4.68 × 1016 Hz. If the energy of the initial state of the Be3+ ion was -3.88 × 10(-18) J, calculate the energy of the final state. Express answer in scientific notation.
The reaction below has a Kc value of 1.0 × 1012. What is the value of Kp for this reaction at 500 K. 2 SO2(g) + O2(g) 2 SO3(g)
Consider the decomposition of calcium carbonate. Assume that ?H° = 177.8 kJ/mol and ?S° = 160.5 J/K·mol for the temperature range.
calculate the grams of solute needed to prepare each of the following solutions: a)2.00 L of a 5.00 M NaOH solution. b) 325 mL of a .100 M CaCl2 solution. c) 15.0 mL of a .500 M MiNO3 solution.
find the amount of known substance present in the mixture.a mixture of calcium carbonate and calcium oxide that weighed
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