a. What is the pH of a buffer solution that is 0.12 M NH3 and 0.12 M NH4 +? К, for NH3 is 1.8 x 10-5 pH b. What is the pH if 37 mL of 0.24 M hydrochloric acid is added to 555 mL of this buffer? pH

Q: The heat of vaporization for 1.0 mole of a substance X at 45.99°C is 50.6 kJ. Calculate ASsurr for t...

A:

Q: a. What is the pH of a buffer solution that is 0.12 M NH3 and 0.12 M NH4+? К, for NH3 is 1.8 x 10-5....

A: Given that, a buffer solution has 0.12 M of NH3 and 0.12 M of NH4+. The Kb of NH3 is 1.8×10-5. a. We...

Q: Fe,O3 (s) + 3 CÓ (g) =2 Fe (s) + 3 CO, (g) Answer and briefly explain: Which would cause the reactio...

A:

Q: A.) What is the temperature of 0.45 mol of gas at a pressure of 1.0 atm and a volume of 12.0 L ? Ex...

A: Ideal gas equation gives the relationship between pressure, volume, number of moles and temperature ...

Q: In the laboratory you measured RMSE, however here you will enter the R2 value displayed on the graph...

A:

Q: 1.What are the factors to consider when choosing an emulsifier?

A: As per the rules only the first question can be answered

Q: What is likely the type of that dissolved solute in the cells? (potatoes or sweet potatoes)

A: The solute  named sucrose is present. 

Q: PROBLEM: The molecular scenes below represent samples of four HA/A- buffers. (HA is RED and GREEN, A...

A:

Q: 1-10. 4.35 L of a gas is at 1.16 atm. What pressure is obtained when the volume is 9.3 L? 11-20. A g...

A:

Q: A laboratory was using some faulty equipment and some of the chemicals leaked out, which produced on...

A: Given: Experimental yield = 6.51 g. And theoretical yield = 10.64 g.  

Q: The solubility product for AgI(s) is 1.5 × 10-16. Calculate the value of E° for the half-reaction Ag...

A: Solubility product for AgI(s) = 1.5 × 10-16  Reduction potential for the metal cation : Ag+ + e-  --...

Q: In a solutions, it is a substance that is usually present in greatest amount is known as? Select on...

A:

Q: The instrument used in the titrations which hold the titrant is called? Select one: a. pipette b. Bu...

A: Generally in titration we take burette and conical flask . Let's discuss where we will take titrant.

Q: Given the following reactions, name the organic product(s) produced, if there is a reaction. If no r...

A:

Q: equilibrium mixture? When a sufficiently large sample of SO3(g) is introduced into an evacuated vess...

A: 2SO3 -----> 2SO2 + O2 Equilibrium concentration of SO2 = 2 × Equilibrium concentration of O2 so, ...

Q: Make molicular orbital diagram for all bonds and lone pair!

A: To draw molecular orbital diagram for all bonds and lone pairs

Q: Calculate the percent composition of Cr203.

A:

Q: EXPERIMENTAL DATA The initial concentrations of SCN after dilution were calculated as part of the Pr...

A: The data given is, And the final volume of solution = 15.00 mL.

Q: A student determines [FeSCN2+] is 0.00011 M at equilibrium. If the initial concentration of Fe3+ was...

A:

Q: Name the molecule below: * НО NH, NH,

A: In IUPAC nomenclature, the longest C chain with the highest priority group is the parent chain and i...

Q: COCI, (g) = CO (g) + Cl, (g) @ 100 °C K. = 2.19 x 10-10 Predict the direction the rxn proceeds towar...

A: The given equilibrium reaction is as follows: COCl2g ⇌COg + Cl2g

Q: How would you make a 1 mL 0.8% Tween-20 solution in PBS from a 10% stock solution?

A: Tween-20 is polysorbate 20 with molecular formula C58H114O26 Its molecular weight is 1226g/mol Conce...

Q: provide the iupac name and molecular formula

A:

Q: Each of the following alcohols is named incorrectly. Draw structural formulas, and then give the cor...

A:

Q: - Compare the properties of the following using , or = sign 1. boiling point 3.0 mC,H,,O, 2.0 m NaC...

A:

Q: The H* concentration in an aqueous solution at 25 °C is 1.5 x 10°. What is [OH]?

A:

Q: Match the four structures with the four IR spectra (by putting a proper letter in the box to the rig...

A: IR spectrum mainly used for the identification of the functional group present in the molecule. The ...

Q: a. Find the pH of a solution that is 0.500 M in formic acid and 0.300 M in sodium formate. K. (formi...

A:

Q: 6 Convert ethanol into a polyethylene glycol chain (better known as PEG. You can google the structur...

A: The functional group is a key component associated with a molecule that furnishes the notable chemic...

Q: A solution was made by dissolving 3.75 g of a solute in 108.7 g of acetone . The solution boiled at ...

A:

Q: Find the percent composition of each element in Sodium Citrate (Na3C6H5O7)

A: Percent composition:  It is defined as the ratio of the amount of element to the total amount of the...

Q: igh-performance liquid chromatography would never be applied in drug analysis This statement is tru...

A: Given : We have to tell whether the statement is true or false.

Q: The concentration of hydroxide ion in an aqueous solution at 25°C is 4.2 x 10 M. What is the concent...

A: Given : Concentration of OH- ion = 4.2 x 10-4 M

Q: Why is the least stable carbanion the bottom middle carbanion? Why wouldn't it be the left secondary...

A:

Q: Calculate the vapor pressure of a solution prepared by dissolving 25.5 g of naphthalene (C10H8), whi...

A: Given, mass of naphthalene = 25.5 g Molar mass of naphthalene = 128 g.mol-1 Mass of benzene = 150.0 ...

Q: H

A:

Q: The following acid-base reaction occurs spontaneously in the gas phase: NH:(g) + HCI(g) = NH:CI(s) D...

A:

Q: 10. A sample of diethyl ether is allowed to stand, over time it reacts with molecular oxygen to form...

A: The arrow pushing mechanism describes the movement of electrons. If it is half-headed arrow, it indi...

Q: What is the equivalent weight of H2SO4? Select one: a. 98 g/equiv b. 44 g/equiv c. 96 g/equiv d. 49 ...

A:

Q: Part A Use bond enthalpies in the table below to estimate AH for each of the following reactions, Av...

A:    

Q: An aqueous solution was prepared by dissolving 2.11 g of NaCl in enough water to make 1500. mL of s...

A:

Q: The pH of a 0.0058 M solution of HNO, is

A: Hydrogen ion concentration is an important parameter of an aqueous solution. The concentration of th...

Q: If you have multiple analytical balances to use during a lab, why do you think it is important to us...

A: Because our analytical balance is calibrated according to your needs so if we use different analytic...

Q: Obtain the oxidation number for the N in NH3. O-3 O+4 O+3 00

A: Oxidation number is the charge present in the atom in a chemical species by assuming the compound is...

Q: the oxidizing agent

A: There are some parts missing in the reaction you mentioned, so keeping in mind the starting parts of...

Q: Write about the least to most important safety rules in a laboratory room. (Atleast 6 safety rules

A: 1. Dress for laboratory lab  This is the safety rule because your clothing is the best form of prote...

Q: What is the most likely product of the following reaction? OH PCC CH,Cl2 OH IV

A: Given : We have to make product for the given reactants.

Q: A tiny sample of an aqueous solution of two substances R and P is sketched below, as if it was under...

A: The reaction given is, => R (aq) ⇔ P (aq)                 K = 3 The initial condition is depicted...

Q: Complete the balanced chemical equation for the following reaction between a weak base and a strong ...

A: The Chemical reaction follows the law of conservation of mass. According to the law of conservation ...

Q: 1. A student prepares a 600.0 mL of 500.0 ppm of glucose solution. What volume of this solution (in ...

A: Given,  Volume of the solution = 600.0 mL  Concentration of glucose solution in ppm = 500.0 ppm  Wha...

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.