a buffer solution that containing the same concentration of the acid and the salt will have a pH which is the same as the pka true or false

Q: Which of the acids listed below has the weakest conjugate base? O H₂02; K₂ = 2.400x10-12 O HBr, K₂=…

A: The larger the value of ka stronger the acid and weaker the conjugate base.

Q: Verify your calculation. In your set-up, do your units cancel? Did you report your data to the…

A: “Since you have asked multiple question, we will solve the first question for you. If youwant any…

Q: Changing the concentration of which substance(s) would have the most effect on the rate of the…

A:

Q: Calculate the solubility of calcium phosphate in 0.00055 M sodium phosphate solution.

A: Given the molarity of sodium phosphate, Na3PO4(aq) = 0.00055 M Each sodium phosphate, Na3PO4(aq) is…

Q: How many atoms are in 0.89 mol of iron? How many grams of carbon dioxide are in a container with a…

A: 1 mole = 6.022 * 1023 molecules/atoms    Note : There are multiple questions posted. As per…

Q: A certain liquid has a vapor pressure of 92.0 Torr at 23.0 °C and 274.0 Torr at 45.0 °C. Calculate…

A: # Calculation for ∆Hvap: Initial state: Temperature, T1 = 23.0+273.15 = 296.15 K vapor pressure, P1…

Q: How many moles are in 1.46 kilograms of sulfur? A. 45.5 B. .0455 C. .0910 D. 91.0

A:

Q: In the reaction, 2 NaN, (s) 2 Na(s) + 3 N₂(g) ->> how many liters of nitrogen, N₂, measured at STP,…

A:

Q: At 10°C, the ion-product constant of water, K w, is 6.88 × 10 –15. What is the pH of pure water at…

A: Autoionization of water takes place as follows: The product of the concentration of the hydronium…

Q: For each of the following sets of reactants, write the balanced equation for the double displacement…

A: To solve this problem we have to write the balanced chemical equation of given problem .

Q: What is the pH of 1.47e-5 M HBr?

A: Strong acid completely dissociate in aqueous medium to give H+ ion  pH= -log(H+)

Q: What is the pH of a sol that is 0.15m in CH3coone and 0.20m in ch3cooh the ka of ch3cooh is 1.8x10-5

A:

Q: A solution is 0.0500 M in NH, Cl and 0.0320 M in NH3 (K. (NH₂) = 5.70 x 10-10). Calculate its OH…

A: First of all we write the equilibrium equation for equilibrium constant Kb. And from this eauation…

Q: Q.3. Observe the following pictures and answer the questions. 1. Which of the picture above are…

A: We need to determine which of these changes are temporary and which are permanent.

Q: Consider the following chemical reaction: MgO (s) + 2HCl(aq) ---------->MgCl2(aq) + H2O(l)  How…

A: Given mole of hydrochloric acid is 3.20

Q: Suppose 3.85 g of sodium chloride is dissolved in 300. mL of a 54.0 m M aqueous solution of silver…

A: Molarity is defined as no of mole solute dissolved in a 1-liter solution.

Q: Of the structures shown, which two are isomers? 1 and 2 1 and 3 O 1 and 4 2 and 4 O 3 and 4 2

A: Compounds that have same formula(same numbers of atom) but a different arrangement of atoms in the…

Q: 2No + Br2 ---><--- 2NoBr If one places 4.3 moles of No and 2.6 moles of Br2 into a 2 liter flask,…

A: Given : Initial number of moles of NO = 4.3 mol Initial number of moles of Br2 = 2.6 mol Volume of…

Q: Calculate the freezing point of an 0.260 m aqueous solution of lithium perchlorate (LiClO4). The…

A:

Q: Column 1 Mass of empty and clean evap. dish ívàss or the evap. aisn + sodium bicarbonate (g) 1st…

A: To calculate for the following and label it under Trial 1 and Trial 2. Mass of NaHCO3 initially used…

Q: What is the functional group of the molecule below? ester aldehyde carboxylic acid ketone H3C C. CH3

A:

Q: Me Me Me OH A Me Me B 1. MeMgBr (xs), THF; aq. HCI 2. TSCI, pyridine 3. KOtBu, tBuOH Me Me Me O C Me…

A:

Q: Reactants A and B react to form C in the following balanced generic reaction: A + 2B - C In a…

A: Balanced reaction or balanced chemical equation is the equation in which the number of atoms of each…

Q: Consider the of a diatomic molecule. Intensity 0 B. 2400 rotational-vibrational spectrum a. 18 cm-1…

A: In rotational vibrational spectrum of diatomic molecule,  There is three type of spectrum line that…

Q: Calculate the mass of 1.4 moles of Ba3(PO4)2.

A: Recall the data, moles of Ba3(PO4)2=1.4 mol molar mass =601.93 g mol-1 mass of Ba3(PO4)2=?

Q: What type of enzyme can perform redox reactions? A) Oxidoreductases B) Transferases C) Hydrolases D)…

A:

Q: Q18. The rate of migratory insertion changes with bulky ligands coordinated to the met and the Lewis…

A:

Q: 7. Provide the major organic product when 2-chloro-3-ethylpentane is heated to 45 °C in ethanol. are…

A: It will favour E1 mechanism over SN1 , SN2 because here ethanol will behave as base over…

Q: 4 One mole of N2​O4​ is introduced into a constant pressure chamber at a temperature of 298.15 K and…

A:

Q: Q1. How many sigma bonds and pi bonds are there in each of the following molecules? HH H- :ċi: :2:…

A: Molecule is made up of two or more than two atoms.

Q: Gaseous butane (CH3(CH2)2(CH3)) reacts with gaseous oxygen gas (O2) to produce gaseous carbon…

A: Given, Water produced = 1.75 g butane = 4.6 g Oxygen = 9.2 g

Q: You are going to be thrilled to know that the amino acid cysteine has the formula What mass of…

A: Solution  Correct option is A) 13.4 g

Q: A 0.075 M single-liter acid solution has an H30 concentration equal to?

A: General formula for acid HxAy .

Q: 93 41 Given the atomic symbol, identify the following: A: Nb4+ Z: [Select] [Select] # of protons:…

A:

Q: Which of the following sets of systems are in order of increasing entropy? A B C H₂(g), HBrO (g),…

A:

Q: 4. Provide the full mechanism (curved arrows and intermediates) that leads to the product in the…

A:

Q: Electrophilic bromination of an equimolar mixture of methylbenzene (toluene) and…

A: Aromatic compounds like benzene give electrophilic substitution reaction. If an electron donating…

Q: The temperature of a fixed mass of gas was varied was from 16 °C to 58 °C without changing the…

A:

Q: Procedure A: Molarity (M=g/MM/L) Step 1. Place one-eighth of a teaspoon (this weighs approximately…

A: A saturated solution of NaCl is when we cannot dissolve more NaCl in the solution. In this condition…

Q: Calculate the pH of the following solutions: A.     0.01 M NaOH…

A: We need to determine pH of given solution.    Note : Since there are multiple questions posted, as…

Q: When 7Be undergoes electron capture, what is the daughter nuclide that forms? 4 O 11C 6 O 8B 5 O 3He…

A:

Q: part 1: please answer a-c An impure Mg sample weighing 0.0320 g was inserted into an inverted…

A:

Q: 2. A 1.1324 g sample of an iron ore is dissolved in acid. The iron is oxidized to a +3 state and is…

A:

Q: (CH3)3COH = convert tocomplete structure

A:

Q: Electrophilic nitration of benzoic acid gives almost exclusively 3-nitrobenzoic acid. By drawing the…

A: benzoic acid undergoes electrophilic substitution reaction when reacted with Nitration mixture(1:1…

Q: 10.33 Name the functional group in each of the following molecules: e. CH₂CH₂CH₂C=O a. CH3CH₂CH₂OH…

A: There are different groups for different functional groups-  aldehyde - RCHO ketone- RCOR'…

Q: Learning Task 1: Determine what kind of carbon allotropes are the given pictures below based on its…

A: We need to determine the type of carbon allotrope shown in each picture.

Q: QUESTION 10 Which of the following is an intermediate in the bromination of toluene? O

A: The aromatic compound reacts with bromine from bromo arenes. The reaction proceeds by the aromatic…

Q: In(Concentration) Time (s) on these graphs the reaction would be wh second order. third order. zero…

A:

Q: Suppose 0.802g of sodium iodide is dissolved in 50.mL of a 59.0mM aqueous solution of silver…

A: Balanced equation for the reaction of sodium iodide (NaI) and silver nitrate (AgNO3) is , NaI(aq) +…

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.