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Question - The rate constant for the decay of As-72 is 0.0266 hr-1. If one starts with a 0.200-g sample, calculate...
A) the sample mass remaining after one day.
B) the time required for 70% of the sample to decompose.
C) the half-life
Any assist is greatly appreciated!
A 2.5-ft3 tank of water at 160 psia and 363.5 oF has how many cubic feet of liquid water in it? Assume that you start with 1lb of H20. Could it contain 5 lb of H2O under these conditions
The reaction of calcium oxide with the pollutant, sulfur trioxide, to produce calcium sulfate has been proposed as one way to remove the the SO3 from the smoke resulting from burning high sulfur coal (as in a power plant).
Predict the equilibrium constant for the 1st reaction given the equilibrium constants for the 2nd and 3rd reactions. CO2(g) + 3 H2(g) CH3OH(g) + H2O(g) K1
Natural gas is a mixture of many substances, primarily CH4, C2H6, C3H8, and C4H10. Assuming that the total pressure of gases is 1.48atm and that their mole ration is 94:4, 0:1, 5:0.50, calculate the partial pressure in atmospheres of each gas.
What is the percent-yield of H2 In the reaction below when an equimolar mixture of CH4 and CO2 with an initial total pressure of 20.0 atm reaches equilibrium at 1200. K, at which Kp = 3.548 x 106
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If 5.00 X 10^3kg each of ammonia, oxygen, and methane are reacted, what mass of HCN and water would be produced, assuming 100% yield?
Problem- The molar heat of vaporization of acetic acid, HC2H3O2, is 24.3 kJ mol-1 at its boiling point. How many kilojoules of heat would be liberated by the condensation of 5.79 g of acetic acid
Problem- In 2011, researchers showed that hypochlorous acid (HClO) generated by white blood cells kills bacteria. Calculate (Ka)=2.9X10^-8 the percent dissociation of :( A). 0.40 M HClO, (B) 0.035 M HClO
combining 0.228 mol of FecO3 with excess carbon produced 13.2g of Fe. Fe2O3 + 3C -> 2Fe + 3CO what is the actual yield of iron inn moles? what is the theoretical yield of iron in moles? what is the percent yield
write Lewis structure for Oxygen difluoride, OF2. How many lone pairs are one the oxygen atom
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