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Sketch a diagram of a pH sensitive glass electrode, label all parts and indicate the function of each part.
A mixture consisting of 0.130 mol N2, 0.041 mol O2, 0.100 mol CH4, and an unknown amount of CO2 occupies a volume of 8.90 L at 25°C and 1.09 atm pressure. How many moles of CO2 are there in this sample
In an insulated container, a hot piece of iron (cp =0.4513 J/g-C) at 1490. C was added to 200. g of water (cp =4.184 J/g-C) at 20. C. The temperature of the resulting mixture became 90. C. What mass of iron was present?
Calculate the formula for each of the following halogen compounds to five or more significant figures
Write an equation for any changes observed.
A reaction has an equilibrium constant of 8.2 X 10^3 at 298 K. At 764 K , the equilibrium constant is 0.53. Find Delta H rxn for the reaction.
calculate the total volume of gases that can be collected at 1.2 atm and 293 k from 260 grams of nitroglycerin 4
When the two cylinders are connected and the gases mixed, the pressure in each cylinder becomes 8.71 atm. What is the volume of cylinder B?
When 5.00 × 1022 molecules of ammonia react with 4.00 × 1022 molecules of oxygen, how many grams of nitrogen gas are produced? 4NH3(g) + 3O2(g) → 2N2(g) + 6H2O(g)
A student dispensed 20.00 mL of 2x10^-5 M blue #1 solution into a test tube. He then added 2.00 mL of NaCl solution and 2.00 mL of 2.50 % bleach solution.
next titrates an unknown sample with this DCP solution and reaches the end point at 40.5 mL. How many mg of ascorbic acid were present in the unknown sample
Describe how a linear sequence of amino acids gives rise to the three-dimensional structure of proteins. Detail the significance of this structure, how it may be modified, and the results of such modification.
Why did the book suggest using a Hirsch funnel? What would be the benefit of using a Hirsch funnel?
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