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Compute deltaS values for the subsequent reactions by utilizing tabulated So values from Appendix C. (a) Cl2(g) + H2(g) 2 HCl(g) So deltaS = J/K (b) Be(OH)2(s) BeO(s) + H2O(g) So deltaS = J/K (c) SO2(g) + 1/2 O2(g) SO3(g) So deltaS = J/K (d) NH3(g) + HCl(g) NH4Cl(s) So deltaS = J/K
A spherical ball of lead has a diameter of 4.0cm . What is the mass of the sphere if lead has a density of 11.34g/cm^3? (The volume of a sphere is (4\3) pi r^3 where r is the radius.)
What is the change in internal energy (in J) of a system that releases 675 J of thermal energy to its surroundings and has 5.60 * 10^2 cal of work done on it?
Construct the lewis structure model for the ionic compound potassium chloride using the following steps.
A 13-g sample of calcium reacts with bromine to form 24g of calcium bromide. How many grams of bromine are used in the reaction?
question 0.65g of hydrogen chloride hcl is dissolved in water to make 8.0l of solution. what is the of the resulting
Write the balanced equation for the reaction of aqueous Pb(ClO3)2 with aqueous NaI. Include phases.
Imagine that you have a 5.50 L gas tank and a 2.00 L gas tank. You need to fill one tank with oxygen and the other with acetylene to use in conjunction with your welding torch
The sample required 3.7 mL of 0.0013 M NaOH to titrate the sample to neutrality. What was the pH of the gastric juice? Hypochloridia is defined as having a stomach pH greater than 4. Was the patient suffering from hypochloridia?
Why are chromatographic peaks broader than would be expected solely on the basis of the random nature of solute migration
Explain how many electrons should we expect to see associated with the lowest energy peak in the photoelectron spectrum of the element Gallium (Ga)
A 0.1019g portion of an aspirin tablet was dissolved in sufficient water to prepare 1.000L of solution. A pipet was used to transfer 10 mL of the solution to a 100 mL volumetric flask. A 2 mL portion of 4 M NaOH (aq) was added to the flask, and th..
An unknown protein sample gave an absorbance of 0.867 ( corresponding to the average of three replicate analyses of the unknown sample). Calculate the mass (micrograms) of protein in the unknown. Calculate the absolute uncertainty for the answer.
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