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a mixture of Feo and Fe3O4 when heated in air to constant weight , gains 5 % in its weight . find out composition of mixture.
a 0.831-g sample of so3 is placed in a 1.00-l container and heated to 1100 k. the decomposes to so2 and o2
If this is a sn2 reaction, why isn't the stereochemistry inverted? Why isn't the answer B? My professor chose A as the correct answer. Thanks
Antimony has two naturally occurring isotopes, Sb-121 (mass = 120.9038 amu) and Sb-123 (mass = 122.9042 amu). Calculate the percent abundances of these isotopes of antimony
A mixture of gases contains 2.42 g of Kr, 4.58 g of Ar, and 5.74 g of NO2. What is the partial pressure in atm of each component of this mixture if it is held in a 11.5-L vessel at 31.3 oC? Use R = 0.0821 L-atm/mol-K as the value of the gas consta..
A 4.50-g sample of LIL at 25.oC dissolves in 25.0 mL of water also at 25.0C. The final equilibrium temperature of the resulting solution is 60.8C. What is the enthalp of solution of LICL expressed in kilojoules per mole?
some physical properties of water are shown below.nbspfreezing point 0.00degcnbspboiling point 100.00degcnbspkf
Explain what is the pressure of the gas in a mercury mamometer if h=91mm as well as atmospheric pressure is 781 mmHg
the first-order rate constant for the decomposition of a certain antibiotic in water at 20 degrees celsius is 1.65
Question- A. Calculate the ratio of solubility of Mg(OH)2 dissolved in pure H2O to Mg(OH)2 dissolved in a 0.180M NaOH solution.
a sample of an alloy containing only zinc and aluminum had a mass of 0.5937g. when this sample was reacted with excess
if phosphoric acid is pour into an aluminum can what would thereaction look like? we did this in lab to see if aluminum
The radioactive isotope tritium decays with a first-order rate constant k of 0.056 year-1. What fraction of the tritium initially in a sample is still present 30 years later?
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