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1. Compute the mass of 2.85 mol NO2.
2. Compute the number of moles of compound in 360 g Fe(ClO4)3.
3. Compute the total number of atoms in 0.71 g NH4NO3.
two beakers are placed in a sealed box at 25 . one beaker contains 30.0 of a 5.5times10?2 aqueous solution of a
These air conditioners are recharged from stockpiled supplies of CFC-12. If each of the 100 million automobiles contains 1.1 kg of CFC-12 and leaks 25% of its CFC-12 into the atmosphere per year, how much Cl in kilograms is added to the atmosphere..
Estimate the enthalpy change for the combustion of one mole of ethanol (C2H5OH) using average bond dissociation enthalpies (in KJ/mol) for C-?H: 413, O-?H: 463, C-?O: 358, C-?C: 154, C=O: 122, and O=O: 498.
assuming the composition of coal can be approximated by the formular c135h96o9ns. calculate the mass of carbon in
For the reaction PCl5 PCl3 + Cl2, Kc= 33.7. Calculate the reaction quotient Q to determine which direction the reaction will shift toward when 0.00650 M PCl5, 1.04 M PCl3 and 0.0500 M Cl2 are mixed together in a 1.0 L flask
Given the following partial pressure for the gases: Pnz=0.78atm Po2=0.19atm Ptrace=0.05atm Determine the total pressure for the mixture.
Write the structures of the saytzeff elimination
a compound is 40.0 c 6.70 h and 53.3 o by mass. assume that we have a 100.- g sample of this compound. what are the
Write the correct equation for the reaction resulting from the mixture of 0.01 mols pure sulfuric acid with 0.01 mols sodium cyanide forming a crystalline solid among the products
Calculate the pH of the solution that results when 25.0 mL of 0.120 M HCL is mixed with 40.0 mL of H20
a 500 ml gas sample is collected over water at a pressure of 740 mmhg and 25 celsius. what is the volume of the dry gas
-Suppose a small amount lead(II) chloride got into your Ba(OH)2 Sample before your titration,contaminating it. How do you think the contamination would effect your calculated concentration for the sample. What about a small amount of FeCI3.
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