Calculate the pH using Henderson-Hasselbalch equation of a 50mL buffer solution made from 0.20 M HC2H3O2 and 0.50 M C2H3O2- that has an acid dissociation constant, Ka for HC2H3O2 of 1.8 x 10-5. a.) What will be the change in pH of the buffer solution after the addition of 1.0 mL of   0.10N HCl b.) What is the total buffer capacity of the solution?

Q: If 0.0916 g P406 is mixed with O.113 g H2O, what is the theoretical yield? P406+6H20 → 4H3 PO 3 0.13...

A: Given balanced reaction is :  P4O6 + 6H2O --------> 4H3PO3  Mass of P4O6 = 0.0916 g  Mass of H2O ...

Q: Given the standard enthalpy changes for the following two reactions: (1) 2Ni(s) + 02(g)→2NIO(s) AH° ...

A: We have to find the standard enthalpy changes for the given reaction.

Q: Calculate ΔS when 25.0 g ethanol at 50.0 °C is added to 75.0 g ethanol at 10.0 °C in an insulated co...

A: Entropy change= m×Cp ln T2/T1 25g ethanol has higher temperature 50°C than 75 g ethanol with 10°C.  

Q: 1. Determine the molar mass of (a) potassium hexachloroiridate(IV), K2lrCls and (b) trifluorosilane,...

A: Determine the molar mass of the given complex--

Q: Consider Fe2(SO4)3+ 6H2O+ 6NH3 2Fe(OH)3 + 3(NH4)2SO4. Calculate the mass of (NH4)2SO4 produced when ...

A:

Q: 7 Br 9 Br 10 Br

A:

Q: The solid state of water is what? Uro the paperclip bu

A: Water is in  liquid state, it's chemical formula is H2O. H2O can exist in three phases i.e. Solid, L...

Q: Br 12 Il -- CH3 10," C2 Hs Br NHi -C- C-C-C NOz CI 1Br

A:

Q: B. Refer to the properties of water to answer the following questions: 1. Explain why ice is able to...

A: Since you have asked multiple question, as per our company guidelines we are supposed to answer the ...

Q: If the pH of a 2.54-cm rainfall over 4600 km is 3.50, how many kilograms of sulfuric acid, HSO4, are...

A: Given: pH of acid rain = 3.50 height of rainfall = 2.54 cm Area of rainfall = 4600 km2  

Q: Ammonium thiocyanate and barium hydroxide are mixed at 25 degrees Celsius: the temperature drops. Co...

A: Exothermic process : It is a thermodynamic process where the system releases energy to surroundings,...

Q: Under what condition(s) is the enthalpy change of a process equal to the amount of heat transferred ...

A: The heat energy of the system at constant pressure in given temperature is called enthalpy of the sy...

Q: moles of:

A:

Q: Write all pertinent computations to justify your final answer A gas tank contains 55 g of helium an...

A: Consider the given information is as follows; Mass of helium gas = 55 g    Mass of oxygen gas (O2) =...

Q: Green plants use light from the Sun to drive photosynthesis. Photosynthesis is a chemical reaction i...

A:

Q: name the molecule in the middle

A: Given molecule: The name of this compound has to be determined.

Q: OH H. D H-C-OH HO-CH HO-C-H ČH2OH Sugar D is a cyclic monosaccharide in Fischer formula bearing a py...

A: Monosaccharides are the simplest form of sugars and the most basic unit of carbohydrates.  

Q: What is the name of compound A? сно H- OH но -H- H- OH ČH,OH A. A. D-ribose B. L-talose C. D-threose...

A: Naming for Given Compound A and C .,  

Q: the reaction 2NOCl(g) 2NO(g) + Cl2(g) is Kc = 3.6 × 10–4.  An equilibrium mixture was found to have ...

A: KC is equilibrium constant

Q: composition of water in a hydrate, we need to look at our equation. compare it to your experimental ...

A:

Q: When the substance shown below burns in oxygen, the products are carbon dioxide and water. How many ...

A:

Q: Calculate the pH using Henderson-Hasselbalch equation of a 50mL buffer solution made  from 0.20 M HC...

A: Henderson Hasselbalch equation is the equation used to find out the pH of the solution of weak acid ...

Q: 34. Methanal is the simplest form of aldehyde with a common name of formalin acetone acetylene color...

A: Aldehyde is an organic compound containing functional group -CHO.

Q: Identify which of the following structures are ketals: CH, a. CH;-C-0–CH(CH,), 0-CH(CH,), 0–CH,CH, b...

A:

Q: protein. 57. This is a chemical structure of Oprimary O ertary quarternary 58. This picture of tobac...

A:

Q: Match the reaction to their product. Fe(NO3)3 + NH4OH White precipitate Fe(NO3)3 + KSCN Red colour c...

A:

Q: number of kcal

A:

Q: Calculate whether a precipitate will form if 2.00 mL of 0.60 M NH, are added to 1.0 L of 1.0 x 10-3 ...

A:

Q: Question 40 The following set of data was obtained by the method of initial rates for the reaction: ...

A:

Q: Draw the structural condensed formula of ethyl methanoate.

A:

Q: A solution contains 11 ppb of toluene. This means that ___. 1 g of solution contains 11 × 10...

A: Ppb is the concentration measurement and is named as parts per billion. It measures the concentratio...

Q: Consider a sample with Vsolid = 0.0180 L/mol and Vliquid = 0.0196 L/mol and Hfus = 6.01 kJ/mol. Calc...

A: Given that, for a sample  Vsolid = 0.0180 L/mol. Vliquid = 0.0196 L/mol. Hfus = 6.01 kJ/mol = 6010 J...

Q: Calculate for the viscosity of the solutions. Describe the relationship between viscosity and densit...

A: Answer is as follows.

Q: Ammonia (NH,) chemically reacts with oxygen gas (02) to produce nitric oxide (NO) and water (H,0). W...

A: The solution is given below - 

Q: Write the balanced net ionic equation and name the precipate formed  1. Cu (NO3)2 (aq) + Na2CrO4 (a...

A: Given chemical equations: 1. Cu (NO3)2 (aq) + Na2CrO4 (aq) 2. Pb (NO3)2 (aq) + Na2CrO4 (aq) 3. Ni (N...

Q: Question 18 The simplest ketose sugar is glyceraldehyde. O True O False

A: This statement is false. The simplest ketose sugar is dihydroxyacetone. Simplest aldose sugar is gly...

Q: When 0.0916 g P406 were mixed with 0.113 g H2O, a student obtained 0.121g H3PO3. What was the percen...

A:

Q: For each of the following voltaic cells: A. write the half reactions, designating which is oxidatio...

A:

Q: Find an expression for an ideal gas's (∂S/∂P)T. Then, given a sample containing 2.00 mol Ne (ideal g...

A: Given and what to find:-

Q: 6. How many grams of NH, produces 200.0 g of NO ?

A:

Q: ) POCI; # valence electrons: Each atom w/ Octet: minimized Formal Charge: -) SO3 # valence electrons...

A: Formal charge is calculated as :-  Number of Valence electrons - 1/2 (number of bonded electrons) - ...

Q: D-isomer rotates the plane of polarized light in a counter-clockwise rotation. True False

A: If the rotation of the plane of polarization is clockwise, to the right, then the rotation is called...

Q: For a reaction that has reactant A in its rate law, select which factor(s) affect the reaction rate ...

A:

Q: You have a test tube containing a mixture of Ag+, Fe3+, and Ba2+ . Make a diagram to separate the gi...

A:

Q: NaH (A) CH,-(CH),I PI HBr (excess) OH NaOH МСРВА (B) CH;Cl, PII H,SO, MeOH EtOH PIV PIII athony4.met...

A: PI : There are two products formed. Since the HBr is in excess amount so it will lead to alkyl halid...

Q: Make a Bjerrum-type plot for H2S –HS- – S²- Make a graph and plot pH against [sulfide species]. Assu...

A: Dissociation steps of H2S: H2S↔HS-+H+                              pKa1=7.04HS-↔S2-+H+              ...

Q: Problem 2: Show the fragmentations for4-methyl-2-pentanone radicael carbocation and explain why that...

A: Mass spectra provides the information about molecular mass and possible fragments of the unknown com...

Q: The quantitative determination of N,H, with KIO, proceeds in a mixture of H,O/CCI, as follows N,H, +...

A: Endpoint: refers to the point at which the indicator changes colour in  titration. The endpoint is t...

Q: 4. How many grams of NaCl is needed to prepare a 0.87 M 500 mL solution?

A: Given,  Concentration of NaCl solution = 0.87 M  Volume = 500 ml = 0.5 L