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A 100 mm diameter silicon water (100 ? thick) is oxidized completely according to the reaction Si + O2 > SiO2. What is the thickness of the resulting SiO2 wafer? The molecular weights of Si and SiO2 are 28 and 60 g/mol, respectively. The densities of Si and SiO2 are 2.33 and 2.27 g/cm3, respectively.
Determine the molar internal energy (kJ/mol) of HCl (B = 10.59 cm-1 and ? = 2886 cm-1) under standard thermodynamic conditions. For the vibrational part, use N = nNa.
Methane burns in oxygen to produce carbon dioxide and water. Burning of 22.00 g of methane in oxygen will produce how many moles
An aqueous solution is 35 % by mass methylamine (CH3NH2) and has a density of 0.85 g/cm3. What is the pH of the resulting solution if 50 mL of this solution is diluted
Calculate this salt's solubilty and the molarities of the ions in a saturated solution. Then use this information in the previous problem to find the solubilty of Pbl2
What is the percent ionization of a 0.230 M hydrosulfuric acid (H2S(aq)) solution
Calculate the normality of a KMnO4 solution if 32.38 mL of a 0.1431 N Fe2+ solution is required to react with 15.92 mL
When the flask is allowed to cool the vapor condenses and aire again refulls the flask. Re weighing the flask and figure out the the wight of the unknown vapor which filled the flask during the boiling. Explain why it is not necessary to know the w..
the following reaction were found to be PA = 4.00 atm, PB = 8.40 atm, PC = 5.70 atm, and PD = 1.60 atm. What is the standard change in Gibbs free energy of this reaction at 25 °C.
Acrylonitrile, C3H3N (53.07 g/mol), is used in the synthesis of a variety of plastics. What mass of acrylonitrile can be produced from a mixtur.
if 98 g grams of CaCN2 reacts with 59 g grams of H2O, what mass of NH3 will be formed.
A solution contining AgNO3 is mixed with a solution of NaCl to form a solution that is 0.10 M in AgNO3 and 0.075 M NaCl. What will happen once these solutions are mixed? Ksp(AgCl) = 1.77×10-10.
explain how the designed sensing strategy functions. Point form answers are acceptable, feel free to use a diagram in your explanation.
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