QUESTION . What are the two types of errors one encounters in experiments? Give an example of each. You may use examples from your chemistry, biology, or other physics courses.What does standard deviation of measured data tell you?What does the mean of a group of measured data tell you? one error is impure samples. It […]
QUESTION Prepare one page (minimum) paper what are some of the advantages and disadvantages?. What are some of the advantages and disadvantages? Please double-space your paper and cite your sources. ANSWER: CLICK REQUEST FOR AN EXPERT SOLUTION
QUESTION an interference filter based on the first order interference is to be constructed. It is indicated that the filter will be used to isolate a band centered at 720 nm. Assuming a refractive index of 1.35 for the dielectric layer, what thickness would you recommend? wave number , v = 1 wave length , […]
QUESTION with citations and two references in APA format ANSWER: CLICK REQUEST FOR AN EXPERT SOLUTION
QUESTION Reaction of aqueous solutions of barium chloride and sodium sulfate results in the formation of a percipitate of barium sulfate. Sodium chloride is also formed but is soluble in water. Why would you use filtration to isolate the barium sulfate rather than evaporation or recrystallization?BaCl2(aq) +¦ If we use evaporation or recrystallization, we would […]
QUESTION What is the pH of a buffer prepared by mixing 182 mL of 0.442 M HCl and 0.530 L of 0.400 M sodium acetate. (Acetic Acid: pKa = 4.74) So theres 2 things going on here. HCl is dissociating leaving some H in the solution, and the sodium acetate is dissociating, then equilibrating with […]
QUESTION A, 10.0 g piece of metal at 100 degree Celsius is transferred to a calorimeter containing 50.0 mL of water initially at 23.0 degree Celsius. Calculate the specific heat capacity of the calorimeter C, is 25.0 J/K. The final temperature, T, is 25.6 degrees Celsius. the metal cooled from 100C down to 25.6C while […]
QUESTION What is the role of the AlCl3 and FeBr3 catalysts used in the procedures for Friedel-Crafts alkylation and aromatic halogenation reactions Aluminum chloride is a strong Lewis acid. Its most commonly used as a catalyst for the halogenation (especially chlorination) of aromatic groups, as well as in the Friedel Crafts reaction. Iron chloride (FeCl3) […]
QUESTION Which choice contains both ionic and covalent bonds? I actually have the answer, but I want to understand why?I. H3O+ II. Mg(OH)2 III. SF6 IV. Na2O V. K2CO3(1) I only (2) I & 2 Only (3) I & III Only (4) II & V only (5) I & V onlyLook, the answer is (4) […]
QUESTION Please help with following discussion and written assignment Discussion: Agent-based modeling has been applied in many domains. In this context, please address the following: A. Why are they becoming an influential methodology to study social systems? B. Research the role of ABM in the process of policymaking and implementation particularly in complex areas and […]
