A chemist needs a buffer with pH 4.35. How many milliliters of pure acetic = 1.049 g/mL, Ka = 1.8x10$ ) must be added to 465mL of 0.0941 M NaOH solution (density otain such a buffer?

Q: Describe the motion and arrangement of particles at absolute zero. Use the paperclip button below to...

A: Outright zero is the most minimal conceivable temperature where nothing could be colder and no hotne...

Q: Nickel carbonyl decomposes to form nickel and carbon monoxide, like this: Ni(CO),(9)→Ni(s)+4 CO(g) A...

A: Given reaction is :  Ni(CO)4 (g) -----------> Ni (s) + 4CO (g)  Volume in L = 4.5 L  Mass of Ni(C...

Q: 2. Aluminum bromide (AIBR3) and sodium hydroxide (NAOH) react to form aluminum hydroxide (Al(OH)3) a...

A: Detail mathematical calculation for number of moles finding is shown below

Q: Na Be nalt Nos Bea no NaNo3 Sodum BeNo3 Berylom Nihake B(POD [NO3] NäPo [PO4]3- Beryliun he Beat' Io...

A: Chemical formula comprises of cation and anion.

Q: Scientists can determine the age of ancient objects by the method of radiocarbon dating. The bombard...

A: a) Dinosaur fossils are too old to be reliably dated using carbon-14. Suppose we had a 67 million ye...

Q: 5. Calculate the vapor pressure of water above a solution prepared by adding 22.5 g of lactose (C12H...

A:

Q: Please type this, dont write it on a paper.

A: Here we have to give reasons for endothermic or exothermic to be more spontaneous. Which have more t...

Q: When 0.7521 g of benzoic acid was burned In a calorimeter contalning 1,000. g of water, a temperatur...

A:

Q: Calculate the E and identify the type of electrochemical cells of the following: (a) Ag|AgBr (a=0.10...

A:                                            EBr-/AgBr/Ag0 = 0.10 VECl-/AgCl/Ag = 0.22 V Anode:       ...

Q: Describe a saturated system.

A: Solubility The amount of solute present in 100 g of solvent is known as solubility. The solubility o...

Q: Provide a chemical formula (AmBn) for the product of the reaction below SH [0]

A: -SH functional group represent a thiol which undergo oxidation to form disulfide.

Q: Liquid hexane (CH3(CH2),CH3) reacts with gaseous oxygen gas (0,) to produce gaseous carbon dioxide (...

A: Given, Liquid hexane (C6H14) react with gaseous oxygen (O2) to produce gaseous carbon dioxide (CO2) ...

Q: A chemistry graduate student is given 300. mL of a 1.40M ammonia (NH, solution. Ammonia is a weak ba...

A:

Q: A 8.00 L tank at 4.12 °C is filled with 11.7 g of chlorine pentafluoride gas and 14.1 g of boron tri...

A: Partial pressure of chlorine pentaflouride PV = nRT   P= ?  V = 8L  n = 11.7/130.4 = 0.089  R = 8.31...

Q: 4. What weight (in grams) of lactose (C12H22011 , MW= 342 g/mole) is required to prepare each of the...

A: Note: As per company policy we are supposed to attempt first three subparts only. Please repost othe...

Q: Which of the following occurs when reactants are removed from a chemical reaction in solution or the...

A: According to lechatliers principle when a system at equilibrium is subjected to a stress (change in ...

Q: What are the different types of hybridization?

A: Given question is : What are the different types of hybridization = ?

Q: At equilibrium, Qc is EQUAL to Kc. * Determine if the capitalized word makes the statement correct. ...

A: Chemical equilibrium:

Q: 15) How many moles of 0 atoms are in 2.5.19 of CaSO,?

A:

Q: 23. Discuss how the following chemical transformation can be made. Specify the mechanism or conditio...

A: All the conversions are multi step synthesis . The synthesis are given below

Q: You are asked to prepare a pH = 3.75 buffer solution starting from 1.25 L of a 1.00 M solution of hy...

A: Given: pH of solution = 3.75 Volume of HF solution = 1.25 L Concentration of HF = 1.00 M Ka of HF = ...

Q: Metals lose electrons under certain conditions to attain a noble gas electron configuration. How ma...

A: Given -  Na  

Q: Select the single best answer. Which of the following has more atoms: 2.49 g of hydrogen atoms or 18...

A:

Q: 7.37 Which product (or products) would you expect to obtain from each of the following reactions? In...

A: Given reactions are : Complete the reactions = ?   

Q: If 2.00 mL of 0.900 M NaOH are added to 1.000 L of 0.450 M CaCl,, what is the value of the reaction ...

A: NaOH and CaCl2 reacts together to form NaCl and Ca(OH)2. So, 2 NaOH + CaCl2 -> Ca(OH)2 + 2 NaCl  

Q: Is Km,app higher or lower than Ks and why? Does the vmax change when adding the inhibitor?

A: a) In competetive restraint, the inhibitor and the substrate seek the dynamic site of the catalyst. ...

Q: Estimate the boiling temperature at atmospheric pressure 1 atm for water using Van der Waals paramet...

A: Detail mathematical calculation for boiling temperature is given below

Q: Save What is the theoretical yield of chromium that can be produced by the reaction of 40.0 g of Cr2...

A: Weight of Cr2O3 = 40.0 gm Weight of Al = 8.00 gm  

Q: What happens to a reaction at equilibrium when there is an abundance of sodium carbonate and calcium...

A: Na2CO3 +CaCl2 <--------> 2NaCl + CaCO3  When the reaction is at equilibrium  Rate of forward r...

Q: Which of the following statements does NOT explain why KHP is a suitable primary standard in an acid...

A:   KHP is a suitable primary standard in an acid-base titration. Here we have to find out the stateme...

Q: If the acid ionization constant for HX is 5.44 x10-6 at 25 °C what is the ionization constant for th...

A: Acid Ionisation constant Ka = 5.44*10-6  Let us suppose Ionisation  constant for conjugate base is d...

Q: set of quantum numbers

A:

Q: Calculate the average atomic mass of silver. The percentages denote the relative abundances. Isotope...

A: Given data,Relative abundance of 109Ag=48.16%Relative abundance of 107Ag=51.84%Atomic mass of 109Ag=...

Q: Write the balanced NET ionic equation for the reaction when nickel (II) iodide and aluminum sulfate ...

A:

Q: Calculated Data for the Equilibrium Constant Kc: TABLE 3 - Concentrations for tube 1 Fe3+ HSCN FESCN...

A:

Q: Draw the structure and enumerate the functions of the following alcohols: a. Isopropyl alcohol b. Gl...

A: Isopropyl alcohol IUPAC name: Propan-2-ol Functions: Isomer of propanol Anti-bacterial properties W...

Q: 2. How would you carry out each of the following syntheses? Each may require more than one step.

A: Please see the attachment

Q: Enter the number of electrons in each energy level (shell) for each of the elements. If the energy l...

A: The no of electrons in each element equals the atomic no of that element.

Q: Be sure to answer all parts. How many moles of cobalt (Co) atoms are there in 9.00 x 10° (9.00 billi...

A:

Q: For the ion given below: NO2- 1. Draw the Lewis Dot structure for the ion on a paper and write the...

A: Lewis structures of NO2-.

Q: what minimum mass of cobalt (ii) nitrate must be added

A:

Q: 4.00 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have...

A:

Q: dolomite is mineral which is used in many industries calculate the percent composition by mass of ma...

A: Required data;Molar mass of Ca=40.078 g/molMolar mass of Mg=24.305 g/molMolar mass of C=12.0107 g/mo...

Q: How much heat (kJ) is evolved when 4.50 g of Fe203 is reacted with excess carbon monoxide using the ...

A: Given Data : 

Q: When 0.7521 g of benzoic acid was burned in a calorimeter containing 1,000. g of water, a temperatur...

A: Mass of benzoic acid burned is = 0.7521 g The heat of combustion of benzoic acid s= -26.42 kJ/g

Q: As ammonia nh3 is added to a test tube containing saturated solution of NiCO3 the light green solid ...

A: Given that, ammonia NH3 is added to a test tube containing saturated solution of NiCO3. NiCO3 is lig...

Q: Be sure to answer all parts. The AG for the reaction H,(g) + I(g) = 2HI(g) is 2.60 kJ/mol at 25°C. I...

A: H2(g) + I2(g) --> 2HI(g) ∆G° = 2.60 kJ/mole = 2600J/mole pH2= 3.97 atm pI2= 0.029 atm pHI = 0.53a...

Q: Which of the following occurs when products are added to a chemical reaction in solution or the gas ...

A: -> when reactant or product added then it follow Le-chatelier principle.    

Q: 2- Analytical chemistry : is a measurement science consists of a set powerful ideas and methods that...

A:       Analytical chemistry is a branch of chemistry, used in the determination of chemical compositi...

Q: Calculate the average atomic mass of copper. The percentages denote the relative abundances. Isotope...

A: Average atomic mass (in amu),           = Σ (atomic mass × abundance) of isotopes

Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.