Chemistry concepts and calculations

3. Part A.2. Some spattering of the sample onto the watchglass does occur near d

3. Part A.2. Some spattering of the sample onto the watchglass does occur near dryness. In a hurry to complete the analysis, the chemist chooses not to return the spattered solids…

3. Part A.6. A drop of the NaOH titrant adheres to the side of the buret (becaus

3. Part A.6. A drop of the NaOH titrant adheres to the side of the buret (because of a dirty buret) between the initial and inal readings for the titration. As a result of the "cl…

3. Please help C questions 9. Consider the following variable declarations int i

3. Please help C questions 9. Consider the following variable declarations int i,j,k; double DC10] [7]; char c Which of the following "C Assignment Statements" would give a syntax…

3. Please provide correct solution. Thank you. The liver is involved in detoxifi

3. Please provide correct solution. Thank you. The liver is involved in detoxification of many poisons and drugs. Which of the following structures is primarily involved in this p…

3. Poly(hexamethylene adipamide-or nylon 6,6\"-is a high mechanical strength pol

3. Poly(hexamethylene adipamide-or nylon 6,6"-is a high mechanical strength polymer y used to make fibers for a range of applications, including textiles, carpeting, and molded pa…

3. Potassium hypomanganate, K3MnO4, is a bright blue salt and a rare example of

3. Potassium hypomanganate, K3MnO4, is a bright blue salt and a rare example of a manganese(V) compound. MnO43 is not stable and readily disproportionates according to the reactio…

3. Potassium perchlorate, KCIO, decomposes on heating to form potassium chloride

3. Potassium perchlorate, KCIO, decomposes on heating to form potassium chloride and elemental oxygen. a Write a balanced molecular equation for the thermal decomposition of Using…

3. Predict if the following mixtures will form a one phase soluion: that is wi t

3. Predict if the following mixtures will form a one phase soluion: that is wi the two liquids be miscible? E xplain the basis of your prediction, then test yoer predictions, and …

3. Predict the products of the following reaction, then write the balanced molec

3. Predict the products of the following reaction, then write the balanced molecular, total ionic and net ionic reactions. 3a. Classify the reaction as: redox, acid-base, precipit…

3. Problem 5 in Chapter 7 in Painter & Coleman (p. 256-257). Question 5 Poly(eth

3. Problem 5 in Chapter 7 in Painter & Coleman (p. 256-257). Question 5 Poly(ethylene terephthalate) (PET), which has glass transition (Tg) and crystalline melting temperature…

3. Problem 8.6 (from text book) 8.6 a. Describe the similarities and differences

3. Problem 8.6 (from text book) 8.6 a. Describe the similarities and differences between two types of HPLC: size-exclusion chromatography and adsorption chromatography. b. Assume …

3. Propylene is reacted with oxygen to form acrylic acid by: C3H6 + 1.5 O2 C3H4O

3. Propylene is reacted with oxygen to form acrylic acid by: C3H6 + 1.5 O2 C3H4O2 + H2O Propylene is fed to the reactor with 50% excess oxygen where the oxygen flow rate is 260 km…

3. Protein sequencing II. Determine the sequence of a peptide consisting of 14 a

3. Protein sequencing II. Determine the sequence of a peptide consisting of 14 amino acids on the basis of the following data. o Amino acid composition: (4S,2L,F,G,I,M,T,W,Y, K) o…

3. Protein sequencing II. Determine the sequence of a peptide consisting of 14 a

3. Protein sequencing II. Determine the sequence of a peptide consisting of 14 amino acids on the basis of the following data. o Amino acid composition: (4S,2L,F,G,I,M,T,W,Y, K) o…

3. Pure water is carbonated by means of bubbling gaseous CO2 through it. Then it

3. Pure water is carbonated by means of bubbling gaseous CO2 through it. Then it is bottled. If the air space in the bottle above the water contains only CO, at a pressure of 2 at…

3. Rank from most polar to least polar. Provide reasoning. Triglycerols, fat aci

3. Rank from most polar to least polar. Provide reasoning. Triglycerols, fat acids, cholestero estradiol, phosphoglycerides 4. Assuming that cells are spheres, compare three cells…

3. Rank from most polar to least polar. Provide reasoning. Triglycerols, fat aci

3. Rank from most polar to least polar. Provide reasoning. Triglycerols, fat acids, cholestero estradiol, phosphoglycerides 4. Assuming that cells are spheres, compare three cells…

3. Record the ambient temperature. 4. Determine the corrected refractive index b

3. Record the ambient temperature. 4. Determine the corrected refractive index by placing the observed refractive index into the equation: no20 - nobnerved +0.00045 (t-20) wheret …

3. Routers are equipped with a dual leaky and token bucket. In one sentences exp

3. Routers are equipped with a dual leaky and token bucket. In one sentences explain: (a) The role of the leaky bucket. (b) The role of the token bucket. (c) Is it important which…

3. SUCROSE, C12H22O12 IS A NON-ELECTROLYTE; ACETIC ACID HC2H3O2 ISA WEAK ELECTRO

3. SUCROSE, C12H22O12 IS A NON-ELECTROLYTE; ACETIC ACID HC2H3O2 ISA WEAK ELECTROLYTE; AND CALCIUM CHLORIDE, CaCL2 IS STRONGELECTROLYTE. GIVE THE MOLES OF SOLUTE PARTICLES FORMED B…

3. See an electronegativity table. Compare C, H, O, and N. Rank these elements f

3. See an electronegativity table. Compare C, H, O, and N. Rank these elements from the most electronegative to least In the structures in Questions 1a and 2c and 2e, circle the m…

3. Selectivity for K ions over other cations in potassium channels is directed b

3. Selectivity for K ions over other cations in potassium channels is directed by: a. The size of the cavity at the entrance to the pore is wide enough to allow ion entrance b. Th…

3. Show your work and balance the reaction equation below that illustrates the r

3. Show your work and balance the reaction equation below that illustrates the redox reaction that happens in this titration experiment. (4 points) 4. From the balanced equation a…

3. Silver chloride (AgCl) is a white solid. For the equilibrium reaction AgCl(s)

3. Silver chloride (AgCl) is a white solid. For the equilibrium reaction AgCl(s) = Ag+(aq) + Cl?(aq) The Ksp for AgCl = 1.6 * 10?10. At equilibrium, would you expect to have more …

3. Silver mitrate solution reacts with sodim carbonste solution to peoduce a pee

3. Silver mitrate solution reacts with sodim carbonste solution to peoduce a peecipitant Wite the balanced chemical equation for the reaction deseritbed here and be sure to includ…

3. Sodium hydroxide reacts with oxalic acid as shown in the reaction below. H.GO

3. Sodium hydroxide reacts with oxalic acid as shown in the reaction below. H.GO.(s) + 2 NaOH(aq) Na.GOdaq) + 2 H,0(1) a) If 110 mL of 10% (mass per volume) sodium hydroxide is re…

3. Solid sodium iodide is slowly added to a solution that is 0.020 M Pb2+ and 0.

3. Solid sodium iodide is slowly added to a solution that is 0.020 M Pb2+ and 0.020 M Ag+. Ksp (PbI2) = 1.4 ×10–8; Ksp (AgI) = 8.3 ×10–17. (a) What compound will precipitate first…

3. Some medications are formulated such that there is a slow release of the acti

3. Some medications are formulated such that there is a slow release of the active ingredients. Such formulations are known as "extended release." Azithromycin ER is a single-dose…

3. Some medications are formulated such that there is a slow release of the acti

3. Some medications are formulated such that there is a slow release of the active ingredients. Such formulations are known as "extended release." Azithromycin ER is a single-dose…

3. Some polymers can form liquid crystal mesophases with unusual physical proper

3. Some polymers can form liquid crystal mesophases with unusual physical properties. For example, liquid crystal Kevlar (as following picture) is strong enough to be the material…

3. Strings Answer the following questions regarding string type: (a) Show how to

3. Strings Answer the following questions regarding string type: (a) Show how to use or more string member functions that do the following tasks. i. Given a string S, find the sub…

3. Strontium-90 is present in spent nuclear fuel and in radioactive waste from n

3. Strontium-90 is present in spent nuclear fuel and in radioactive waste from nuclear reactors and also as fallout from nuclear tests. It is a beta-emitter. The following graph s…

3. Sulfur dioxide gas (SO2) is an agent that contributes significantly to enviro

3. Sulfur dioxide gas (SO2) is an agent that contributes significantly to environmental problems, specifically acid rain. To reduce SO2 emissions, a coal burning plant employs a s…

3. Sulfur dioxide is being emitted in a rural area at a rate of 0.90 kg/s from a

3. Sulfur dioxide is being emitted in a rural area at a rate of 0.90 kg/s from a stack with an effective stack height of 220m. The average wind speed at stack height is 4.8 m/s an…

3. Suppose that an object weighing 4 lbs. stretches a spring 2 inches. The objec

3. Suppose that an object weighing 4 lbs. stretches a spring 2 inches. The object is displaced an additional 6 inches below the equilibrium position and then released. The object …

3. Suppose that you do an AA spectroscopic analysis for Ca 2+ in yogurt. 1.5 g o

3. Suppose that you do an AA spectroscopic analysis for Ca2+ in yogurt. 1.5 g of yogurt is digested with 20.0 mL of HNO3 for ~ 10 minutes. The mixture is filtered into a 100 mL vo…

3. Suppose you have an array of N objects (as a reminder, in Java, the array wou

3. Suppose you have an array of N objects (as a reminder, in Java, the array would actually contain references to the objects). Each object has a key field and some other data fie…

3. Suppose you have an array of N objects (as a reminder, in Java, the array wou

3. Suppose you have an array of N objects (as a reminder, in Java, the array would actually contain references to the objects). Each object has a key field and some other data fie…

3. Suppose you have an array of N objects (as a reminder, in Java, the array wou

3. Suppose you have an array of N objects (as a reminder, in Java, the array would actually contain references to the objects). Each object has a key field and some other data fie…

3. Suppose you have an array of N objects (as a reminder, in Java, the array wou

3. Suppose you have an array of N objects (as a reminder, in Java, the array would actually contain references to the objects). Each object has a key field and some other data fie…

3. Suppose your unknown brass sample consists of a piece of hardware, such as a

3. Suppose your unknown brass sample consists of a piece of hardware, such as a screw, and your lab is tasked with determining the copper content of the sample. One screw is not l…

3. Tell how each of the following experimental errors will affect your ex- perim

3. Tell how each of the following experimental errors will affect your ex- perimental results (yield, purity, or both), and explain why. (a) You failed to dry the product complete…

3. Tell how each of the following experimental errors will affect your ex- perim

3. Tell how each of the following experimental errors will affect your ex- perimental results (yield, purity, or both), and explain why. (a) You failed to dry the product complete…

3. Tell me about the non-silicate minerals. List the various groups. How are the

3. Tell me about the non-silicate minerals. List the various groups. How are they distinguished? Give an example or two from each group and tell what they are useful for. 3. Tell …

3. The Lethal dose (LDS0) is the amount of an ingested substance that will kil 5

3. The Lethal dose (LDS0) is the amount of an ingested substance that will kil 50 percent of the test sample. It is usually expressed in mg of substance per kg of body weight (mg/…

3. The Stirling cycle (top) and the Ericsson cycle are similar to the Carnot cyc

3. The Stirling cycle (top) and the Ericsson cycle are similar to the Carnot cycle because these cycles involve isothermal heat intake and isothermal heat rejection As shown in th…

3. The amino acid histidine has 3 pKa values: pKi 1.8, pK2-9.2, pK, \"6.0. An al

3. The amino acid histidine has 3 pKa values: pKi 1.8, pK2-9.2, pK, "6.0. An aliquot of fully protonated histidine (pH 1) is titrated against NaoH. At 1.5 equivalents oH, what spe…

3. The amount of iron in a sample can be determined by titration with potassium

3. The amount of iron in a sample can be determined by titration with potassium dichromate, K2Cr2O7, in acid solution. The two half-reactions occurring are: A 1.885 g solid sample…

3. The average volume of a red blood cell is approximately 90 1L, but this can v

3. The average volume of a red blood cell is approximately 90 1L, but this can vary by tens of thousands of femtoliters. Express the average value in liters using correct exponent…

3. The average volume of a red blood cell is approximately 90 1L, but this can v

3. The average volume of a red blood cell is approximately 90 1L, but this can vary by tens of thousands of femtoliters. Express the average value in liters using correct exponent…