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In order to make modern electronics components, silicon of an extremely high purity is required. One of the steps in purifying silicon involves reacting the intermediate silicon tetrachloride with steam to produce high-purity silicon dioxide and hydrogen chloride gas, as shown in the unbalanced equation below.
SiCl4(s) + H2O(g) ? SiO2(s) + HCl(g)
If the reaction is run with 534.7 g SiCl4 and 103.1 g H2O, what mass of SiO2 will be produced, and what is the excess reactant and what mass of it remains?
(a) What mass of SiO2 will be produced?
What is the latent heat of vaporization Tsat in kJ/mol? (Answers are 1366 kW and 28.4 kJ/mol) Please show work for good rating.
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the density of water is 1.0g/ml at room temperature. briefly explain how the density of an aqueous solution at room temperature can be significantly less than 1.0g/ml?
During the discharge of an alkaline battery, 4.90of Zn are consumed at the anode of the battery. What mass of MnO2 is reduced at the cathode during this discharge?
The air in an inflated balloon (defined as the system) is warmed over a toaster and absorbs 115 J of heat. As it expands, it does 77 kJ of work. what is it change in internal energy for the system?
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