What weight of mercury bichloride should be taken as sample, assuming 100% purity, so that 0.5 g og HgS will be obtained in a gravimetric analysis? Gravimetric factor = 1.1669

Q: Consider a weak acid "HA". What is the pH of a 0.957 mol L-1 solution of HA? The KA of HA is 7.09 x ...

A: The acid dissociation constant for the HA is = 7.09×10-7 The concentration of HCN solution is = 0.95...

Q: Part 2: Use the following equation for questions 1-5 below... find the molar mass first. 2 C,H.O + 7...

A:

Q: 1.0 0.5- 100 200 300 400 Temperature (K) (a) Estimate the normal boiling point and freezing point of...

A:

Q: Prozac, C17H18F3NO, is a widely used antidepressant that inhibits the uptake of serotonin by the bra...

A:

Q: 3 attempts left Check my work Be sure to answer all parts. The standard enthalpies of formation of i...

A: Given Reaction:-  HCl(g) -----> H+(aq) + Cl-(aq) ∆H°rxn= -74.9kJ/mol

Q: Which compounds give a 'H NMR spectrum with two signals in a ratio of 2:3? b. CI

A: 1H-NMR: 1H-NMR provides number and types of hydrogens of unknown compound.    

Q: Calculate the Henry’s law constant ( in torr) of a certain compound with molar mass 51 . The solubil...

A:

Q: A weak acid has KA = 1.59 x 10-8. What is the pKB of its conjugate base?

A:

Q: In a 2.0 L container at 700 K, 0.13 mol CO, 0.56 mol H:O, 1.62 mol CO:, and 0.43 mol H: are allowed ...

A: Answer: Qc is known as reaction quotient and it is the ratio of the active masses of products and re...

Q: following happen: When you answer the question, consider how the situation affects the calculation o...

A: The titrant is NaOH and titrate is KHP solution containing known mass of solid KHP. The molarity of ...

Q: 20. Calculate the freezing temperature of water under a pressure of 2 atmospheres, Given : 1,= 80 ca...

A:

Q: normality of 0.5781 g acid (eq wt = 187.3) in 250.0 mL of solution

A:

Q: how many moles are in 1x10-6 g of C7H14O2?

A:

Q: The addition of O.3800 L of 1.150 M KCI to a solution containing Agt and Pb?+ ions is just enough to...

A: As per the bartleby guidelines we solve the first question for you. Please find the below attachment...

Q: A solution of 2.162 grams of compound Y per 1000 grams of water at 20C has a vapor pressure of 2.162...

A:

Q: 1. НО OH 1. СHзMgBr 3. Но", А `H 2. Hао

A: This reaction occur in three step. Step first protection agar aldehydic group and step second grigna...

Q: OH F F F

A:

Q: `N' .N. H20

A: Please find the below attachment.

Q: This molecule undergoes a substitution reaction through an SN1 pathway when warmed and stirred with ...

A: HBr Is a strong acid, which protonates the alcohol.  Protonated alcohol will eliminate as water and ...

Q: 7. MnO4 C204 -2 + + H+→ Mn++ + CO2 + H20

A:

Q: For natural product Vanillin, the primary component of the extract of vanilla bean, use the chemical...

A:

Q: Isoeugenol is the compound which gives the characteristic odor to nutmeg and contains carbon, hydrog...

A:

Q: 420. mg of an unknown protein are dissolved in enough solvent to make 5.00 mL of solution. The osmot...

A:

Q: the rate constant kequals 0.020 L mol-1s1 at a certain temperature. Determine how many minutes it wo...

A: Given values  Initial concentration = 0.042 M  Final concentration = 0.021 M  Rate constant = 0.020 ...

Q: 2. Kinetic data for the following reaction are summarized below. H2Q2(aq) + 31(aq) + 2H*(aq) I3 (aq)...

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

Q: The chemical formula for magnesium sulfide is MgS. A chemist measured the amount of magnesium sulfid...

A:

Q: When conducting a titration of an acid by adding base to the equivalence point, it is appropriate to...

A: Before you begin the titration, you must choose a suitable pH indicator, preferably one that will ex...

Q: What is the pH of 0.273 M trimethylammonium iodide, (CH3)3NHI? The Kb of trimethylamine, (CH3)3N, is...

A: Kb = 6.3 x 10-5

Q: What is the mass percent of silicon in the mineral orthoclase (KAlSi3O8)?

A: Mass percentage = mass of the atommass of compound ×100%

Q: Why pi(π) bond needed a longer wavelength than the sigma bond?

A: In chemistry, all the bonds are generally classified in two two major groups i.e, ionic and covalent...

Q: 5. Aspirin СООН Classification: Salicylic acid + acetic acid COOH Reaction: LOCOCH3 HO + CH;COOH Enz...

A: Aspirin is formed by the reaction of salicylic acid and acetic anhydride in the presence of acetic a...

Q: Gibbs phase rule degrees of freedom: write out the Gibbs phase rule equation for each of these circu...

A:

Q: Calculate the boiling point and freezing point of 10 g of C6H12O8 dissolved in 259 g of water.

A:

Q: Q2. Show the mechanism of the following reactions. N3 THF, rt `Br + NaNg reflux i. + CH;OH a ii. CH,...

A: i) Axial attack of N3- is favored  ii) The reaction undergo SN1 mechanism. iii) The reaction involve...

Q: Acetic acid is a weak acid with Ka = 1.8 x 10 -5 and ionizes into HC2H3O2 -------H + + C2H3O2 - What...

A: pH is negative logarithm of hydrogen ions 

Q: Please derive the critical constants of the Berthelot equation of State.

A:

Q: Which give have the largest ionic interactions? Give a order and explanation in detail in clear hand...

A:

Q: Write the equilibrium constant expression for this reaction: H,CO3(aq) 2H (aq)+CO (aq) →

A:

Q: Revie Constam Part A The Haber-Bosch process is a very important industrial process. In the Haber-Bo...

A:

Q: Chlorine gas can be prepared in the laboratory by the reaction of hydrochloric acid with manganese(I...

A: Given percentage yield is 80.7

Q: This molecule undergoes a substitution reaction through an SN1 pathway when warmed and stirred with ...

A:

Q: Equations A. Zn + H2SO4 > ZNSO4 + H2 B. Mg + 0, - 2MgO C. Na,S + 2HCI 2NACI + H,S D. H,S + S0, - 3S ...

A: If number of atom and charge are balance both side that is  products side and reactants  side the eq...

Q: A doublet at 1.23 ppm (6H), a Singlet at 2.10 (3H, and a Septet at 4.98 ppm (1H) CH3 CH3-CH2-CH2-C-O...

A: Nuclear magnetic resonance spectroscopy, most commonly known as NMR spectroscopy is a spectroscopic ...

Q: Br2 A Mg B FeBr3 Et20 H2NNH2 D OOH E HO, Socl2

A:

Q: Use the Ka values for the following acids to find the strongest conjugate base : HS O3- : 6.3 * 10 ^...

A: Answer:

Q: Consider the formula given below. C4H8 This following represents the molecular formula of an: A) ...

A: ANS. option A) Alkene

Q: 1. The surface temperature of the planet Venus is 847°F. What is this temperature in: Kelvin Celsius

A:

Q: A solution was prepared by dissolving 11.0 g of compound in 270.0 g of ethanol raising the boiling p...

A:

Q: Write the equilibrium constant expression for this reaction: H,C,0,(aq) → 2 H"(aq)+C,0 (aq)

A: Equilibrium constant (Kc) is the ratio of the equilibrium concentrations of product over equilibrium...

Q: An isotope of thorium, 227Th, has a half-life of 18.4 days. How long will it take for 83% of the sam...

A: The correct answer of the question is given below