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The chemical reaction occurring during the discharge of a lead storage battery can be represented by the equation: Pb(s) + PbO2(s) +2 H2SO4(aq) 2 PbSO4(s) + 2 H2O(l)
Which is the limiting reagent and the amount of PbSO4 produced if 53.0 g of Pb, 77.3 g of PbO2, and 534 mL of 0.544 M solution of H2SO4 is used?
What is the arrow pushing mechanism for the depolymerization of PET (polyethylene terephthalate) with KOH and pentanol? And what is the mechanism used to convert the resulting compound to terephthalic acid?
A sample mixture of CH4 and C2H6 weighing 0.732 g burned to give 2.064 g CO2. What is the mass of CH4 in the mixture.
An air bubble has a volume of 0.520 L at 16°C. What is the volume in liters at 3°C, if n and P do not change- What is the volume in liters at 422 K , if n and P do not change?
A single-stranded RNA phage replicates in E. coli with no DNA intermediates. The following experiments were performed to clarify the phage's mode of replication.
If the rate of the catalyzed reaction were the same at 100 °C as it is at 21 °C, what would be the difference in the activation energy between the catalyzed and uncatalyzed reactions?
Problem- Magnesium oxide can be made by heating magnesium metal in the presence of the oxygen. The balanced equation for the reaction is 2Mg(s) + O2(g) ? 2MgO(s).
A binary separator sorts glass according to color, with clear glass being the intended material recovered and colored glass being the intended material rejected. Glass enters the separator at a rate of 1575 pounds per hour with clear glass being 1..
explain why covalent bonds are formed when non metals from the right side of the periodic table bond with each other. Give two examples of such compounds.
Global warming refers to the rise in average global temperature due to the increased concentration of certain gases, called greenhouse gases, in our atmosphere.
What is the wavelength of a light ray if its frequency is 4.64 x 1014 s-1? answer in units of nanometers (nm).
Sample size is given as 10 grams - you need to measure weight since many of the materials contain solids as well as liquid. Identity and expected concentration of ingredient to analyze?
Explain how many mL of this original solution are required to prepare 10mL solution of a 20 mg/L and then from the 20 mg/L define how many mL are required to make 10mL of 4 mg/L
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