Consider the following two standard deviation values: 0.100 grams/mol and 1.00 grams/mol. Which of these numbers signifies a more consistent—and likely higher quality—analytical technique? Explain.

Q: How many significant figures are in each of the following quantities? a. 0.008 750 L 45. b. 3.40 x 1...

A: Since you have posted a question with multiple sub-parts with multiple questions, we will solve the ...

Q: . Classify the Carbohydrates ?

A: Since you have asked multiple questions, we will solve the first question for you. If you want any s...

Q: In a calorimeter, 150 mL of 0.5 mol/L barium chloride is mixed with 150 mL of 0.5 mol/L sodium sulfa...

A: The solution is given below - 

Q: 2. An unknown protein yielded the following test re- sults using the procedure in this experiment. B...

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Q: 2NaHCO3(s) + 129kJ → Na2CO3(s) + H2(g) + CO2(g) 6) This equation indicates that AH is complete the r...

A: Given reaction: 2NaHCO3(s) + 129 kJ → Na2CO3(s) + H2(g) + CO2(g) We have to find the sign of ∆H. Als...

Q: ections; make a reducing sugar -reducing sugar for the disaccha cate linkage. Name the disaccha

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Q: 1. Draw the Product (If applicable) of the Following Reactions: Br HCl

A: Detail mechanistic pathway is given below

Q: How many grams of carbon disulfide are needed to completely consume 96.2 L of chlorine gas according...

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Q: 50. How many moles are in a 201.5-gram sample of chlorine gas, Cl,? How many molecules of Cl, are pr...

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Q: 7. Please show all work 7. Consider the titration of 25.0 mL of 0.04000 M bifunctional base Na,A (Kb...

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Q: Match the following structural composition of each polysaccharide with its identity Linear homoglyca...

A: A question based on introduction to polymers that is to be accomplished.

Q: Consider the following gas-phase reaction: 4 HCl(g) + O2(g) 2 Cl2(g) + 2 H2O(g) Using data from Appe...

A: Given reaction: 4 HCl (g) + O2(g) ------> 2 Cl2 (g) + 2 H2O( g)

Q: In an aqueous chloride solution cobalt(II) exists in equilibrium with the complex ion CoCI42". Co2+(...

A: The equilibrium given is, And the experiment detail given is,

Q: ... Page 15 of 16 CHEMISTRY2400 EXPERIMENT 8: PRIMARY HALOALKANE: NUCLEOPHILIC SUBSTITUTION WINTER 2...

A: In this type of reaction first carbonation is formed which then rearranges and if it's nucleophilic ...

Q: Consider the following galvanic cell at 25°C Pt|Br (aq) (0.25 M), H* (aq) (0.1 M) |Br2 () || O2 (g) ...

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Q: products energy reactants,

A: In a multistep reaction, the rate determining step is the step with highest activation energy and sl...

Q: The pK, of acetic acid, CH3COOH, is 4.76. What is the value of the equilibrium constant Keg, for the...

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Q: redox reaction? Oyes ou O reducing (1)0'H + (bn) os (bp) HO + (bD)'OSH agent: oxidizing agent: redox...

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Q: You may have observed that KHT has a low solubility at room temperature that generally increases wit...

A: We have find out solubility of KHT.

Q: Sort the following elementary reactions as unimolecular (1), bimolecular (2) or termolecular (3) and...

A: Molecularity is the total number of molecules of reactant species reacting.  For a general reaction ...

Q: where AH° = 92.7 kJ, and Kc = 1.80×10-4, at 298 K. NH4HS(s) NH3(g) + H2S(g) When some moles of NH4HS...

A: NH4HS(s)<===>NH3(g) + H2S(g) ∆Ho= 92.7 kJ Kc = 1.80 x 10-4  

Q: When 23.6 g of calcium chloride, CaCl, was dissolved in water in a constant-pressure calorimeter, th...

A: The mass of calcium chloride is = 23.6 g Increase in the temperature of the calorimeter is = (38.7-2...

Q: Rewrite the Ka expressions as log expressions for the following chemical reactions   H3PO4 (aq) + ...

A: Given,  H3PO4 (aq) + H2O (l) = H2PO4- (aq) + H3O+ (aq); Ka1 for phosphoric acid H2PO4-(aq) + H2O (l)...

Q: A chemist must prepare 600.0 mL of sodium hydroxide solution with a pH of 13.40 at 25 °C. She will d...

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Q: Which of the following polysaccharide will be MORE VISCOUS at acidic pH?   a. amylopectin   b. a...

A: Viscous means difficulty in flow of liquid or solutions.  Polysaccharides forms by linkage of 2 or m...

Q: Consider the following reaction where K. = 1.80×10 2 at 698 K. 2HI(g) H2(g) + I2(g) A reaction mixtu...

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Q: e pH of th e

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Q: Which of the following DOES NOT define a gel?   a. it is in a semi-solid state   b. it entraps l...

A: Gel Semi-solid colloid in a more solid form than a sol broadly .    a.  it is in a semi-solid state ...

Q: 3 ОН NH

A: By following a proper structure one can easily determine the hybridization of an atom.

Q: A 100.0-mL aliquot of 0.100 M diprotic acid H2A (pK1 = 4.00, pk2 = 8.00) was titrated with 1.00 M Na...

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Q: Solid ammonium chloride is slowly added to 125 mL of a lead(II) acetate solution until the concentra...

A: Given: Concentration of Cl- ion, [Cl- ] = 0.0284 M  

Q: What is the percentage of NaOH in the sample?

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Q: Suppose 17.0g of potassium bromide is dissolved in 200.mL of a 0.50 M aqueous solution of silver nit...

A: First we would write a balanced chemical reaction between potassium Bromide and silver nitrate using...

Q: A chemist dissolves 326. mg of pure potassium hydroxide in enough water to make up 130. mlL of solut...

A: Given: Mass of KOH = 326 mg = 0.326 g                                     (since 1 g = 1000 mg) And ...

Q: Syneresis is a process by which there is the loss of water trapped within the gel matrix through the...

A: Syneresis is a process by which there is loss of water trapped within gel matrix through release of ...

Q: 1. Complete the table provided below for nomenciature of Carboxylic Acid & Derivatives. Structure IU...

A: a. b. c. d. e.

Q: A chemist dissolves 622. mg of pure barium hydroxide in enough water to make up 180. mL of solution....

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Q: At 25oC, the cell Pt, H2(1atm)| HCl (aq) |AgCl, Ag has an emf of 0.332 at 25oC. What is the pH of th...

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Q: (a) Select all of the correct statements about the relative acid strengths of pairs of acids from th...

A: The strength of the acid can be determined by the stability of the conjugate base after the donation...

Q: Directions: Find the mass of solute will dissolve in 100mL of water at the following temperatures? 1...

A: Solubility curve : It is the graphical representation of variation of solubility in the given solven...

Q: In SDS page, the elute from the column first. proteins will move through the gel fastest and first, ...

A: SDS page and size exclusion chromatography are methods to separate proteins . In SDS page, charged m...

Q: Compare the two quantities based on the given condition: Gravimetric determination of chloride as...

A: Ans. option d is right. (d) The two quantities cannot be compared due to insufficient information.  ...

Q: Complete the following table, which lists information about the measured acid dissociation constants...

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Q: Consider the following data on some weak acids and weak bases: acid base K, name formula name formul...

A: We have to predict the order of the pH.  

Q: A) Which of the following has a higher boiling point: Butane or butanamine? Explain your answer. ...

A: we need to compare boiling point and solubility of the given compounds n

Q: Weak base with strong acid Practice: titration of 25.00 ml of 0.10 M NH3 with 0.10 M HCl at 25 °C. p...

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Q: A student ran the following reaction in the laboratory at 676 K: H2(g) + I2(g) = 2HI(g) When she int...

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Q: Consider the ground state of xenon, Xe. How many electrons have /-1 as one of their quantum numbers?...

A: Calculate the quantum number in the Xe atom of the given question--

Q: A student ran the following reaction in the laboratory at 543 K: PCI3(g) + Cl2(g) =PCI5(g) When she ...

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Q: Calculate the pH of an aqueous solution at 25°C that is 7.4 × 10¬3 M in HI. pH

A: