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Calculate the amount of energy released per gram of hydrogen nuclei reacted for the following reaction. The atomic masses are H (with 1 neutron) = 1.00782 amu; H (with 2 neutrons) = 2.01410 amu; an electron = 5.4858 x 10^-4 amu.
H(with 1 neutron) + H(with 1 neutron) yields H(with 2 neutrons) + 1 electron
write the molecular formula for given compounds and determine the amount of molecules present.for each of the following
Detailed analysis of the 369 and 295 cm-1 bands show them to arise from totally symmetric modes. Show that the Raman spectrum is consistent with a trigonal-bipyrimidal geometry.
a) if you make up a solution of 50mL of 0.1M TRIS in the acid form, what will be the pH. b) If you add 2mL of 1M NaOH to the solution, what will be the pH
A student makes 215 mL of a 3.15M solution of Na2SO4. he then forgets to seal it and some water evaporates overnight. When he comes back int he morning, the volume of the solution is only 205 mL. What is the molarity of the solution after the wate..
You collected a water sample from your shower containing 3.2mM Ca2+ and 1.1 mM Mg2+ whats the hardness of water in terms of CaCO3/L.
Given that the standard enthalpy of atomization for sodium is 108.4 KJ/mol, calculate the energy in kilojoules required to convert 1.40 mol of sodium metal at 25 celsius to 1.4 mol of gaseous Na+ ions. (Ionization energy of Na(g) is 495.9 KJ/mol)
10-ml volumetric flask an empty weighs 10.263 grams.nbsp the mass is 20.211 grams after filling to the mark with
What are the coefficients of the six species in the balanced equation above? Remember to include H2O (l) and H+ (aq) in the appropriate blanks.
What is the nature of the substance(non polar, polar, ionic) and intermolecular force(ionic or van der waals if van der walls give type including h-bond)
Determine K for the reaction, H2C2O4(aq) + 2 OH-(aq) C2O42-(aq) + 2 H2O(l) given that, for H2C2O4(aq), Ka1 = 6.5 x 10-2 and Ka2 = 6.1 x 10-5. Don't forget that Kw = 1 x 10-14.
What is the ratio of the number of electrons for each atom of lead over one atom of aluminum
Calculate the pH of a water at 25oC that contains 3.69 mg/L of carbonic acid. You may assume that the concentrations of carbonate and hydroxide are negligible and that there are no other ions present in solution.
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